Update test.yml to use pull_request_target

.github/workflows/test.yml

@@ -3,7 +3,7 @@ name: Test
 on:
   push:
     branches: [ "main" ]
-  pull_request:
+  pull_request_target:
     branches: [ "main" ]
   schedule:
     - cron: "0 0 1 * *"  # Runs at 00:00 on the 1st day of every month
@@ -27,18 +27,27 @@ jobs:
       FISKALHRGO_TEST_KNOWN_ZKI: ${{ secrets.FISKALHRGO_TEST_KNOWN_ZKI }}
       CISTESTPRODPING: ${{ secrets.CISTESTPRODPING }}
     steps:
-    - uses: actions/checkout@v4
+      - name: Checkout PR branch
+        if: ${{ github.event_name == 'pull_request_target' }}
+        uses: actions/checkout@v4
+        with:
+          # Check out the PR's head commit to test the contributor's changes
+          ref: ${{ github.event.pull_request.head.sha }}
 
-    - name: Set up Go
-      uses: actions/setup-go@v4
-      with:
-        go-version: 'stable'
+      - name: Checkout default (non-PR)
+        if: ${{ github.event_name != 'pull_request_target' }}
+        uses: actions/checkout@v4
 
-    - name: Build
-      run: go build -v ./...
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: 'stable'
 
-    - name: Test
-      run: go test -v ./...
+      - name: Build
+        run: go build -v ./...
+
+      - name: Test
+        run: go test -v ./...
 
   go122:
     runs-on: ubuntu-latest
@@ -49,15 +58,23 @@ jobs:
       FISKALHRGO_TEST_KNOWN_ZKI: ${{ secrets.FISKALHRGO_TEST_KNOWN_ZKI }}
       CISTESTPRODPING: ${{ secrets.CISTESTPRODPING }}
     steps:
-    - uses: actions/checkout@v4
+      - name: Checkout PR branch
+        if: ${{ github.event_name == 'pull_request_target' }}
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+
+      - name: Checkout default (non-PR)
+        if: ${{ github.event_name != 'pull_request_target' }}
+        uses: actions/checkout@v4
 
-    - name: Set up Go 1.22
-      uses: actions/setup-go@v4
-      with:
-        go-version: '1.22'
+      - name: Set up Go 1.22
+        uses: actions/setup-go@v4
+        with:
+          go-version: '1.22'
 
-    - name: Build
-      run: go build -v ./...
+      - name: Build
+        run: go build -v ./...
 
-    - name: Test
-      run: go test -v ./...
+      - name: Test
+        run: go test -v ./...