use nix-quick-install-action

Author: PgBiel

.github/workflows/test.yml

@@ -14,9 +14,12 @@ jobs:
       - uses: actions/checkout@v4
         with:
           submodules: "recursive"
-      - uses: cachix/install-nix-action@v26
+      - uses: nixbuild/nix-quick-install-action@8505cd40ae3d4791ca658f2697c5767212e5ce71 # v30
+        nix_conf: |
+          keep-env-derivations = true
+          keep-outputs = true
       - name: Nix cache
-        uses: nix-community/cache-nix-action@135667ec418502fa5a3598af6fb9eb733888ce6a
+        uses: nix-community/cache-nix-action@135667ec418502fa5a3598af6fb9eb733888ce6a # v6
         with:
           # restore and save a cache using this key.
           primary-key: nix-${{ runner.os }}-${{ hashFiles('**/*.nix', '**/flake.lock') }}