build(deps): bump cachix/install-nix-action from 30 to 31 (#658)

Bumps
[cachix/install-nix-action](https://github.com/cachix/install-nix-action)
from 30 to 31.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/cachix/install-nix-action/releases">cachix/install-nix-action's
releases</a>.</em></p>
<blockquote>
<h2>v31</h2>
<h2>What's Changed</h2>
<ul>
<li>nix: 2.24.9 -&gt; 2.25.2 by <a
href="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/Mic92"><code>@​Mic92</code></a> in <a
href="https://redirect.github.com/cachix/install-nix-action/pull/218">cachix/install-nix-action#218</a></li>
<li>ci: fix latest installer tests by <a
href="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/sandydoo"><code>@​sandydoo</code></a> in <a
href="https://redirect.github.com/cachix/install-nix-action/pull/220">cachix/install-nix-action#220</a></li>
<li>ci: add ubuntu-24.04-arm to matrix by <a
href="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/msgilligan"><code>@​msgilligan</code></a> in <a
href="https://redirect.github.com/cachix/install-nix-action/pull/221">cachix/install-nix-action#221</a></li>
<li>nix: 2.25.2 -&gt; 2.26.2 by <a
href="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/Mic92"><code>@​Mic92</code></a> in <a
href="https://redirect.github.com/cachix/install-nix-action/pull/226">cachix/install-nix-action#226</a></li>
<li>nix: 2.26.2 -&gt; 2.26.3 by <a
href="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/sandydoo"><code>@​sandydoo</code></a> in <a
href="https://redirect.github.com/cachix/install-nix-action/pull/228">cachix/install-nix-action#228</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a
href="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/msgilligan"><code>@​msgilligan</code></a> made
their first contribution in <a
href="https://redirect.github.com/cachix/install-nix-action/pull/221">cachix/install-nix-action#221</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/cachix/install-nix-action/compare/v30...v31">https://github.com/cachix/install-nix-action/compare/v30...v31</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/cachix/install-nix-action/commit/02a151ada4993995686f9ed4f1be7cfbb229e56f"><code>02a151a</code></a>
Merge pull request <a
href="https://redirect.github.com/cachix/install-nix-action/issues/228">#228</a>
from cachix/bump-nix</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/066004291cc7638382c409f632f7e0b113fb4daa"><code>0660042</code></a>
nix: 2.26.2 -&gt; 2.26.3</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/e8dbd0c99268f4acbb432e443018da10b7ed9bdc"><code>e8dbd0c</code></a>
docs: update readme with latest version</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/91a071959513ca103b54280ac0bef5b825791d4d"><code>91a0719</code></a>
Merge pull request <a
href="https://redirect.github.com/cachix/install-nix-action/issues/226">#226</a>
from Mic92/nix-update</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/d81eadf041318952daecfb82fe8d7b4538067642"><code>d81eadf</code></a>
nix: 2.25.2 -&gt; 2.26.2</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/3d69a1d4d262a7fb63731d2bc0d081544705e3d5"><code>3d69a1d</code></a>
Merge pull request <a
href="https://redirect.github.com/cachix/install-nix-action/issues/221">#221</a>
from msgilligan/msgilligan/github-test-aarch64-linux</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/265a04a520d4a95357365b3a9c2e73135a8e9830"><code>265a04a</code></a>
GitHub test.yml: add ubuntu-24.04-arm to matrix</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/89fd1e98db16430dad3d6595e0f6d30718059e4e"><code>89fd1e9</code></a>
Merge pull request <a
href="https://redirect.github.com/cachix/install-nix-action/issues/220">#220</a>
from cachix/fix-master-tests</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/a76df16350261308addb51d2386f28f5f0975987"><code>a76df16</code></a>
ci: bump nixpkgs channel</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/a49b703498f43e1426a1b820f27cf12cad57143f"><code>a49b703</code></a>
ci: fix act test</li>
<li>Additional commits viewable in <a
href="https://github.com/cachix/install-nix-action/compare/v30...v31">compare
view</a></li>
</ul>
</details>
<br />


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</details>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/build.yml

@@ -21,7 +21,7 @@ jobs:
     if: ${{ !contains(github.event.head_commit.message, '[skip ci]') }}
     steps:
     - uses: actions/checkout@v4
-    - uses: cachix/install-nix-action@v30
+    - uses: cachix/install-nix-action@v31
       with:
         github_access_token: ${{ secrets.GITHUB_TOKEN }}
     - run: nix develop --command meson setup build/ -Dwerror=true --buildtype=${{ matrix.buildtype }} -Db_sanitize=${{ matrix.sanitizer }} -Db_ndebug=${{ matrix.ndebug }}
@@ -46,7 +46,7 @@ jobs:
     if: ${{ !contains(github.event.head_commit.message, '[skip ci]') }}
     steps:
     - uses: actions/checkout@v4
-    - uses: cachix/install-nix-action@v30
+    - uses: cachix/install-nix-action@v31
       with:
         github_access_token: ${{ secrets.GITHUB_TOKEN }}
     - run: nix develop .#llvm --command env CXX=clang++ meson setup build/ -Dwerror=true --buildtype=${{ matrix.buildtype }} -Db_sanitize=${{ matrix.sanitizer }} -Db_ndebug=${{ matrix.ndebug }}

.github/workflows/doxygen.yml

@@ -10,7 +10,7 @@ jobs:
   doxygen:
     runs-on: ubuntu-latest
     steps:
-      - uses: cachix/install-nix-action@v30
+      - uses: cachix/install-nix-action@v31
         with:
           github_access_token: ${{ secrets.GITHUB_TOKEN }}
       - uses: actions/checkout@v4

.github/workflows/nix.yml

@@ -13,7 +13,7 @@ jobs:
         os: [ ubuntu-latest, macos-latest ]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: cachix/install-nix-action@v30
+    - uses: cachix/install-nix-action@v31
       with:
         github_access_token: ${{ secrets.GITHUB_TOKEN }}
     - uses: cachix/cachix-action@v16

.github/workflows/treefmt.yml

@@ -10,7 +10,7 @@ jobs:
   treefmt:
     runs-on: ubuntu-latest
     steps:
-    - uses: cachix/install-nix-action@v30
+    - uses: cachix/install-nix-action@v31
     - uses: actions/checkout@v4
     - id: changed-files
       uses: tj-actions/changed-files@v46