Bump cachix/cachix-action from 10 to 12

Bumps [cachix/cachix-action](https://github.com/cachix/cachix-action) from 10 to 12.
- [Release notes](https://github.com/cachix/cachix-action/releases)
- [Commits](cachix/cachix-action@v10...v12)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
 
       - uses: cachix/install-nix-action@v17
 
-      - uses: cachix/cachix-action@v10
+      - uses: cachix/cachix-action@v12
         with:
           name: noredink-ui
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'