ci: bump the actions group across 1 directory with 2 updates

Bumps the actions group with 2 updates in the / directory: [cachix/install-nix-action](https://github.com/cachix/install-nix-action) and [actions/setup-node](https://github.com/actions/setup-node).


Updates `cachix/install-nix-action` from 27 to 29
- [Release notes](https://github.com/cachix/install-nix-action/releases)
- [Commits](cachix/install-nix-action@v27...v29)

Updates `actions/setup-node` from 4.0.3 to 4.0.4
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v4.0.3...v4.0.4)

---
updated-dependencies:
- dependency-name: cachix/install-nix-action
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: actions/setup-node
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: actions
...

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

.github/workflows/cicd.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@v27
+      - uses: cachix/install-nix-action@v29
       - run: nix flake check
 
   build:
@@ -21,6 +21,6 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
-      - uses: cachix/install-nix-action@v27
+      - uses: cachix/install-nix-action@v29
       - run: nix build
       - run: nix develop -c sh -c 'tree-sitter generate --no-bindings && tree-sitter test'

.github/workflows/release.yml

@@ -59,7 +59,7 @@ jobs:
       - name: Checking out sources
         uses: actions/checkout@v4
       - name: Set up Node
-        uses: actions/setup-node@v4.0.3
+        uses: actions/setup-node@v4.0.4
         with:
           node-version: '16'
           registry-url: 'https://registry.npmjs.org'