Add test for gradle-executable parameter

Use matrix to allow different script suffix on windows

.github/workflows/prod.yml

@@ -10,6 +10,9 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
+        include:
+          - os: windows-latest
+            script-suffix: '.bat'
     runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout sources
@@ -37,3 +40,9 @@ jobs:
         gradle-version: rc
         build-root-directory: __tests__/samples/no-wrapper
         arguments: help
+    - name: Test use defined Gradle executable
+      uses: ./
+      with:
+        gradle-executable: __tests__/samples/basic/gradlew${{ matrix.script-suffix }}
+        build-root-directory: __tests__/samples/no-wrapper
+        arguments: help