ci: add conditions to all steps on upload-release-artifact

.github/workflows/release-please.yaml

@@ -24,21 +24,24 @@ jobs:
   upload-release-artifact:
     needs: release-please
     runs-on: ubuntu-latest
-    if: ${{ needs.release-please.outputs.releases_created }}
     steps:
       - name: "Check out the repository"
+        if: ${{ needs.release-please.outputs.releases_created }}
         uses: actions/checkout@v4
 
       - name: "Setup Java and Maven"
+        if: ${{ needs.release-please.outputs.releases_created }}
         uses: actions/setup-java@v4
         with:
           java-version: '21'
           distribution: 'temurin'
 
       - name: "Package JAR using Maven wrapper"
+        if: ${{ needs.release-please.outputs.releases_created }}
         run: ./mvnw dependency:go-offline clean compile package
 
       - name: "Upload Release Artifact"
+        if: ${{ needs.release-please.outputs.releases_created }}
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: gh release upload ${{ steps.release-please.outputs.tag_name }} ./target/shadow-${{ steps.release-please.outputs.major }}.${{ steps.release-please.outputs.minor }}.${{ steps.release-please.outputs.patch }}.jar