Update scala.yml

Author: Atry

.github/workflows/scala.yml

@@ -42,5 +42,5 @@ jobs:
     - name: Publish to Maven Central Repository
       env:
         GITHUB_PERSONAL_ACCESS_TOKEN: ${{secrets.PERSONAL_ACCESS_TOKEN}}
-      if: ${{ env.GITHUB_PERSONAL_ACCESS_TOKEN != '' }}
+      if: ${{ env.GITHUB_PERSONAL_ACCESS_TOKEN != '' && github.event_name != 'pull_request' }}
       run: sbt ++${{ matrix.scala }} "set every Seq(sonatypeSessionName := \"${{github.workflow}} ${{github.run_id}}-${{github.run_number}}-${{github.run_attempt}}-$$ ${{ matrix.scala }}\", publishTo := sonatypePublishToBundle.value)" publishSigned sonatypeBundleRelease