build(deps): bump cachix/install-nix-action from 27 to 30 (#4342)

Bumps [cachix/install-nix-action](https://github.com/cachix/install-nix-action) from 27 to 30.
- [Release notes](https://github.com/cachix/install-nix-action/releases)
- [Commits](https://github.com/cachix/install-nix-action/compare/ba0dd844c9180cbf77aa72a116d6fbc515d0e87b...08dcb3a5e62fa31e2da3d490afc4176ef55ecd72)

---
updated-dependencies:
- dependency-name: cachix/install-nix-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/ensure_linting.yml

@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
       - name: Install Nix
-        uses: cachix/install-nix-action@ba0dd844c9180cbf77aa72a116d6fbc515d0e87b #v27
+        uses: cachix/install-nix-action@08dcb3a5e62fa31e2da3d490afc4176ef55ecd72 #v30
         with:
           github_access_token: ${{ secrets.GITHUB_TOKEN }}