chore(deps): update actions/upload-artifact action to v7

Author: renovate[bot]

.github/workflows/build.yml

@@ -21,7 +21,7 @@ jobs:
     - name: Build with Maven
       run: mvn -B package --file pom.xml
     - name: Upload artifact
-      uses: actions/upload-artifact@v6.0.0
+      uses: actions/upload-artifact@v7.0.0
       with:
         name: SkinsRestorerAPIExample
         path: ./target/*.jar