Avoid using the deprecated ::set-output in gh workflows

Author: vogti

.github/workflows/publish.yml

@@ -18,21 +18,21 @@ jobs:
                     distribution: 'temurin'
             -   name: Get release version
                 id: get_version
-                run: echo "::set-output name=version::${GITHUB_REF#refs/tags/}"
+                run: echo "version=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV
             -   name: Publish package
-                run: ./gradlew -Pversion=${{ steps.get_version.outputs.version }} publish
+                run: ./gradlew -Pversion=${{ env.version }} publish
                 env:
                     MAVEN_USERNAME: ${{ secrets.OSSRH_USERNAME }}
                     MAVEN_PASSWORD: ${{ secrets.OSSRH_TOKEN }}
                     GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
                     ORG_GRADLE_PROJECT_signingKey: ${{ secrets.OSSRH_GPG_SECRET_KEY }}
                     ORG_GRADLE_PROJECT_signingPassword: ${{ secrets.OSSRH_GPG_SECRET_KEY_PASSWORD }}
-            - name: Upload JAR to GitHub Release
-              uses: actions/upload-release-asset@v1
-              with:
+            -   name: Upload JAR to GitHub Release
+                uses: actions/upload-release-asset@v1
+                with:
                     upload_url: ${{ github.event.release.upload_url }}
-                    asset_path: build/libs/prism-${{ steps.get_version.outputs.version }}.jar
-                    asset_name: prism-${{ steps.get_version.outputs.version }}.jar
+                    asset_path: build/libs/prism-${{ env.version }}.jar
+                    asset_name: prism-${{ env.version }}.jar
                     asset_content_type: application/java-archive
-              env:
-                    GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+                env:
+                    GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}