chore: bump nixbuild/nix-quick-install-action from 28 to 29

Bumps [nixbuild/nix-quick-install-action](https://github.com/nixbuild/nix-quick-install-action) from 28 to 29.
- [Release notes](https://github.com/nixbuild/nix-quick-install-action/releases)
- [Changelog](https://github.com/nixbuild/nix-quick-install-action/blob/master/RELEASE)
- [Commits](nixbuild/nix-quick-install-action@v28...v29)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/gen_schedule_update_deps.yaml

@@ -25,7 +25,7 @@ jobs:
         role-to-assume: arn:aws:iam::${{ secrets.AWS_PRODUCTION_CORE_ACCOUNT_ID }}:role/github-actions-nhost-${{ github.event.repository.name }}
         aws-region: eu-central-1
 
-    - uses: nixbuild/nix-quick-install-action@v28
+    - uses: nixbuild/nix-quick-install-action@v29
       with:
         nix_version: 2.20.5
         nix_conf: |