Add Gradle Wrapper Validation workflow

Signed-off-by: Daniel Widdis <widdis@gmail.com>

Author: dbwiddis

.github/workflows/wrapper.yml

@@ -0,0 +1,10 @@
+name: Validate Gradle Wrapper
+on: [pull_request]
+
+jobs:
+  validate:
+    name: Validate
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: gradle/wrapper-validation-action@v1