Update build.yml

Author: thejudge156

.github/workflows/build.yml

@@ -51,7 +51,7 @@ jobs:
     - name: Repack JRE
       run: bash "repackjre.sh" $GITHUB_WORKSPACE/pojav $GITHUB_WORKSPACE/pojav/jre21-pojav
     - name: Upload artifact
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v4
       with:
           name: jre22-pojav
           path: pojav/jre22-pojav/*