Let nightly.yml accept hedgehog-tests input (#6062)

* Let nightly.yml accept hedgehog-tests input
* Default tests from 10k to 50k

Author: zeme-wana

.github/workflows/nightly.yml

@@ -3,32 +3,41 @@ name: Nightly Test Suite
 on:
   schedule:
     - cron: 0 0 * * * # daily at midnight
+
   workflow_dispatch: # or manually dispatch the job
+    inputs:
+      hedgehog-tests:
+        description: Numer of tests to run (--hedgehog-tests XXXXX)
+        required: false
+        default: "50000"
+
+env: 
+  HEDGEHOG_TESTS: ${{ github.event.inputs.hedgehog-tests || 50000 }}
 
 jobs:
   nightly-test-suite:
+    timeout-minutes: 14400
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Quick Install Nix
-        uses: cachix/install-nix-action@V27
-        with:
-          extra_nix_config: |
-            experimental-features = nix-command flakes
-            accept-flake-config = true
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@main
 
+      - name: Use Magic Nix Cache
+        uses: DeterminateSystems/magic-nix-cache-action@main
+      
       - name: plutus-core-nightly
         if: always()
         run: |
           pushd plutus-core
-          nix run --no-warn-dirty --accept-flake-config .#plutus-core-test -- --hedgehog-tests 10000
+          nix run --no-warn-dirty --accept-flake-config .#plutus-core-test -- --hedgehog-tests $HEDGEHOG_TESTS
           popd
 
       - name: plutus-ir-nightly
         if: always()
         run: |
           pushd plutus-core
-          nix run --no-warn-dirty --accept-flake-config .#plutus-ir-test -- --hedgehog-tests 10000
+          nix run --no-warn-dirty --accept-flake-config .#plutus-ir-test -- --hedgehog-tests $HEDGEHOG_TESTS
           popd