ci: Switch away from Detsys nix-installer-action (#105)

https://determinate.systems/blog/installer-dropping-upstream/

Author: shivaraj-bh

.github/workflows/ci.yaml

@@ -12,13 +12,13 @@ jobs:
         os: [ubuntu-latest, macos-latest]
     steps:
       - uses: actions/checkout@v4
-      - uses: DeterminateSystems/nix-installer-action@main
+      - uses: nixbuild/nix-quick-install-action@v33
       - name: Install omnix
         run: nix --accept-flake-config profile install "github:juspay/vira"
       - run: vira ci
   flake-parts-linkCheck:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: DeterminateSystems/nix-installer-action@main
+      - uses: nixbuild/nix-quick-install-action@v33
       - run: nix build github:hercules-ci/flake.parts-website#checks.x86_64-linux.linkcheck --override-input process-compose-flake .