chore(test): revert jest and babel-jest to 26 (#9377)

package.json

@@ -48,7 +48,7 @@
     "@vue/server-test-utils": "^1.2.0",
     "@vue/test-utils": "^1.2.0",
     "babel-eslint": "^10.1.0",
-    "babel-jest": "^27.0.2",
+    "babel-jest": "^26.6.3",
     "chrome-launcher": "^0.14.0",
     "consola": "^2.15.3",
     "create-require": "^1.1.1",
@@ -64,7 +64,7 @@
     "glob": "^7.1.7",
     "got": "^11.8.2",
     "improved-yarn-audit": "^2.3.3",
-    "jest": "^27.0.3",
+    "jest": "^26.6.3",
     "jiti": "^1.10.1",
     "jsdom": "^16.6.0",
     "jsonfile": "^6.1.0",

renovate.json

@@ -19,7 +19,9 @@
     "@types/webpack-dev-middleware",
     "@types/terser-webpack-plugin",
     "@types/webpack-bundle-analyzer",
-    "wrap-ansi"
+    "wrap-ansi",
+    "jest",
+    "babel-jest"
   ],
   "lockFileMaintenance": {
     "enabled": true