Fix GitHub actions file formatting and update to Java 21

Author: OutCraft-Mods

.github/workflows/build-publish-discord.yml

@@ -41,10 +41,10 @@ jobs:
           path: gradle.properties
           properties: minecraft_version
 
-      - name: Set up JDK 17
+      - name: Set up JDK 21
         uses: actions/setup-java@v3
         with:
-          java-version: 17
+          java-version: 21
           distribution: temurin
 
       - name: Setup Gradle
@@ -53,13 +53,13 @@ jobs:
       - name: Build with Gradle
         run: ./gradlew build
 
-      # - name: Publish to GitHub Packages
-      #   if: github.event_name == 'push' && github.repository_id == '521749383'
-      #   uses: gradle/gradle-build-action@v2
-      #   with:
-      #     arguments: publishMavenJavaPublicationToGitHubPackagesRepository
-      #   env:
-      #     GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+#     - name: Publish to GitHub Packages
+#       if: github.event_name == 'push' && github.repository_id == '521749383'
+#       uses: gradle/gradle-build-action@v2
+#       with:
+#         arguments: publishMavenJavaPublicationToGitHubPackagesRepository
+#       env:
+#         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Send built file to discord
         if: github.event_name == 'push'
@@ -69,8 +69,8 @@ jobs:
         with:
           args: ./build/libs/*.*
 
-#            - name: Archive Artifacts
-#              uses: actions/upload-artifact@v3
-#              with:
-#                  name: createrobotics-${{ steps.get_mc_version.outputs.minecraft_version }}-nightly-${{ steps.get_hash.outputs.sha_short }}
-#                  path: build/libs/
+#     - name: Archive Artifacts
+#       uses: actions/upload-artifact@v3
+#       with:
+#         name: createrobotics-${{ steps.get_mc_version.outputs.minecraft_version }}-nightly-${{ steps.get_hash.outputs.sha_short }}
+#         path: build/libs/