Update cachix/install-nix-action action to v30

Author: renovate[bot]

.github/workflows/ci-docs.yml

@@ -11,7 +11,7 @@ jobs:
       - uses: actions/[email protected]
         with:
           fetch-depth: 0
-      - uses: cachix/install-nix-action@v29
+      - uses: cachix/install-nix-action@v30
       - name: Set current version
         run:  echo "DOCSPELL_VERSION=$(cat version.sbt | grep version | cut -d= -f2 | xargs)" >> $GITHUB_ENV
       - name: Build website (${{ env.DOCSPELL_VERSION }})

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
           fetch-depth: 100
       - name: Fetch tags
         run: git fetch --depth=100 origin +refs/tags/*:refs/tags/*
-      - uses: cachix/install-nix-action@v29
+      - uses: cachix/install-nix-action@v30
       - name: sbt ci ${{ github.ref }}
         run: nix develop .#ci --command sbt ci
   ci:

.github/workflows/release-nightly.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/[email protected]
         with:
           fetch-depth: 0
-      - uses: cachix/install-nix-action@v29
+      - uses: cachix/install-nix-action@v30
       - name: Set current version
         run:  echo "DOCSPELL_VERSION=$(cat version.sbt | grep version | cut -d= -f2 | xargs)" >> $GITHUB_ENV
       - name: sbt ci ${{ github.ref }}

.github/workflows/release.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/[email protected]
         with:
           fetch-depth: 0
-      - uses: cachix/install-nix-action@v29
+      - uses: cachix/install-nix-action@v30
       - name: Set current version
         run:  echo "DOCSPELL_VERSION=$(cat version.sbt | grep version | cut -d= -f2 | xargs)" >> $GITHUB_ENV
       - name: sbt make-pkg (${{ env.DOCSPELL_VERSION }})

.github/workflows/website.yml

@@ -10,7 +10,7 @@ jobs:
       - uses: actions/[email protected]
         with:
           fetch-depth: 0
-      - uses: cachix/install-nix-action@v29
+      - uses: cachix/install-nix-action@v30
       - name: Set current version
         run:  echo "DOCSPELL_VERSION=$(cat version.sbt | grep version | cut -d= -f2 | xargs)" >> $GITHUB_ENV
       - name: Build website (${{ env.DOCSPELL_VERSION }})