Update build.yml

Skip `publish` if not on `master`

Signed-off-by: Gregory Mitchell <grmitchell713@gmail.com>

Author: gmitch215

.github/workflows/build.yml

@@ -102,6 +102,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: build
     name: Publish to Repository
+    if: ${{ github.event_name != 'pull_request' && github.ref_name == 'master' }}
     timeout-minutes: 30
 
     steps:
@@ -118,4 +119,4 @@ jobs:
         env:
           NEXUS_USERNAME: ${{ secrets.NEXUS_USERNAME }}
           NEXUS_PASSWORD: ${{ secrets.NEXUS_PASSWORD }}
-        run: ./gradlew clean build publish -x test
+        run: ./gradlew clean build publish -x test