Allow unsecure node_version

.github/workflows/validate.yml

@@ -20,6 +20,8 @@ on:
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
+env:
+  ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION: true
 jobs:
   build-linux:
     runs-on: ${{ matrix.os }}
@@ -32,12 +34,12 @@ jobs:
     name: ubuntu-18.04 (x64, ${{ matrix.type }})
     steps:
       - name: Checkout
-        uses: actions/checkout@v4 
+        uses: actions/checkout@v3
         with:
           ref: ${{ github.event.pull_request.head.sha || github.ref }}
           submodules: recursive
       - name: ccache
-        uses: hendrikmuhs/ccache-action@v1.2
+        uses: hendrikmuhs/ccache-action@v1.2.11
         with:
           key: ${{ matrix.os }}-z64re-ccache-${{ matrix.type }}-x64-${{ inputs.N64RECOMP_COMMIT }}
       - name: Prepare Build