fix: use underscores in bundle name and .tgz extension (#5823)

Author: ndv99

.github/workflows/upload.yml

@@ -10,7 +10,7 @@ jobs:
     name: Upload build artifacts
     runs-on: ubuntu-24.04
     env:
-      PACKAGE_NAME: maas-ui-${{ github.sha }}.tar.gz
+      PACKAGE_NAME: maas_ui_${{ github.sha }}.tgz
       VITE_APP_GIT_SHA: ${{ github.sha }}
     steps:
       - uses: actions/checkout@v4