ci(actions): fix GitHub Actions

Author: ok-coder1

.github/workflows/build.yml

@@ -29,7 +29,7 @@ jobs:
       - name: Capture build artifacts
         uses: actions/upload-artifact@v4
         with:
-          name: Artifacts
+          name: matrix-blocks-java-17
           path: build/libs/*.jar
           if-no-files-found: error
 
@@ -55,6 +55,6 @@ jobs:
       - name: Capture build artifacts
         uses: actions/upload-artifact@v4
         with:
-          name: Artifacts
+          name: matrix-blocks-java-21
           path: build/libs/*.jar
           if-no-files-found: error