Add gradle_v0.x.yml file to v0.x branch too

.github/workflows/gradle_v0.x.yml

@@ -0,0 +1,16 @@
+# This workflow will build a Java project with Gradle
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
+
+name: Java CI with Gradle for v0.x branch
+
+on:
+  push:
+    branches: [ v0.x ]
+  pull_request:
+    branches: [ v0.x ]
+
+jobs:
+  build:
+    uses: Yelp/nrtsearch/.github/workflows/[email protected]
+    with:
+      branch: v0.x