.github/workflows: bump "cachix/install-nix-action" to v30 (#631)

Author: inclyc

.github/workflows/build.yml

@@ -21,7 +21,7 @@ jobs:
     if: ${{ !contains(github.event.head_commit.message, '[skip ci]') }}
     steps:
     - uses: actions/checkout@v3
-    - uses: cachix/install-nix-action@v22
+    - uses: cachix/install-nix-action@v30
       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@v3
-    - uses: cachix/install-nix-action@v22
+    - uses: cachix/install-nix-action@v30
       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@v22
+      - uses: cachix/install-nix-action@v30
         with:
           github_access_token: ${{ secrets.GITHUB_TOKEN }}
       - uses: actions/checkout@v3

.github/workflows/nix.yml

@@ -13,7 +13,7 @@ jobs:
         os: [ ubuntu-latest, macos-latest ]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: cachix/install-nix-action@v22
+    - uses: cachix/install-nix-action@v30
       with:
         github_access_token: ${{ secrets.GITHUB_TOKEN }}
     - uses: cachix/cachix-action@v12

.github/workflows/treefmt.yml

@@ -10,7 +10,7 @@ jobs:
   treefmt:
     runs-on: ubuntu-latest
     steps:
-    - uses: cachix/install-nix-action@v22
+    - uses: cachix/install-nix-action@v30
     - uses: actions/checkout@v4
     - id: changed-files
       uses: tj-actions/changed-files@v44