build(deps): bump cachix/cachix-action in /.github/actions/install-nix

Bumps [cachix/cachix-action](https://github.com/cachix/cachix-action) from 16 to 17.
- [Release notes](https://github.com/cachix/cachix-action/releases)
- [Commits](cachix/cachix-action@v16...v17)

---
updated-dependencies:
- dependency-name: cachix/cachix-action
  dependency-version: '17'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/actions/install-nix/action.yml

@@ -11,7 +11,7 @@ runs:
     with:
       extra-conf: |
         accept-flake-config = true
-  - uses: cachix/cachix-action@v16
+  - uses: cachix/cachix-action@v17
     continue-on-error: true
     with:
       name: bytecodealliance