Bump DeterminateSystems/nix-installer-action from 8 to 9 (#20)

Bumps [DeterminateSystems/nix-installer-action](https://github.com/determinatesystems/nix-installer-action) from 8 to 9.
- [Release notes](https://github.com/determinatesystems/nix-installer-action/releases)
- [Commits](DeterminateSystems/nix-installer-action@v8...v9)

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

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

Author: dependabot[bot]

.github/workflows/publish.yml

@@ -28,7 +28,7 @@ jobs:
         with:
           ref: ${{ inputs.tag || github.ref_name }}
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@v8
+        uses: DeterminateSystems/nix-installer-action@v9
       - name: Publish flake
         uses: DeterminateSystems/flakehub-push@v3
         with: