Update workflow

Author: ds58

.github/workflows/gradle-test.yml

@@ -9,10 +9,4 @@ on:
 
 jobs:
   gradle-test:
-    runs-on: ubuntu-latest
-    defaults:
-      run:
-        working-directory: ${{ github.workspace }}
-    steps:
-      - uses: actions/checkout@v4
-      - uses: ihmcrobotics/ihmc-actions/.github/actions/gradle-test@main
+    uses: ihmcrobotics/ihmc-actions/.github/workflows/gradle-test.yml@main