chore(deps): update dependency lerna to v9

package.json

@@ -33,7 +33,7 @@
     "@backstage/cli": "^0.30.0",
     "@spotify/prettier-config": "^15.0.0",
     "concurrently": "^9.0.0",
-    "lerna": "^8.0.0",
+    "lerna": "^9.0.0",
     "prettier": "^3.0.0",
     "typescript": "~5.8.0"
   },

packages/app/package.json

@@ -33,8 +33,8 @@
     "@backstage/plugin-user-settings": "^0.8.0",
     "@backstage/theme": "^0.6.0",
     "@internal/plugin-catalog-backend-module-gitea": "^0.1.0",
-    "@mui/material": "^7.0.0",
-    "@mui/icons-material": "^7.0.0",
+    "@mui/material": "^6.0.0",
+    "@mui/icons-material": "^6.0.0",
     "history": "^5.0.0",
     "react": "^18.0.0",
     "react-dom": "^18.0.0",

plugins/catalog-backend-module-gitea/package.json

@@ -26,8 +26,8 @@
     "@backstage/core-components": "^0.16.0",
     "@backstage/core-plugin-api": "^1.0.3",
     "@backstage/theme": "^0.6.0",
-    "@mui/material": "^7.0.0",
-    "@mui/icons-material": "^7.0.0",
+    "@mui/material": "^6.0.0",
+    "@mui/icons-material": "^6.0.0",
     "@material-ui/lab": "4.0.0-alpha.61",
     "react-use": "^17.2.4"
   },