Bump offline-plugin from 5.0.6 to 5.0.7 (#10937)

Bumps [offline-plugin](https://github.com/NekR/offline-plugin) from 5.0.6 to 5.0.7.
- [Release notes](https://github.com/NekR/offline-plugin/releases)
- [Changelog](https://github.com/NekR/offline-plugin/blob/master/CHANGELOG.md)
- [Commits](https://github.com/NekR/offline-plugin/compare/v5.0.6...v5.0.7)

package.json

@@ -113,7 +113,7 @@
     "object-assign": "^4.1.1",
     "object-fit-images": "^3.2.3",
     "object.values": "^1.1.0",
-    "offline-plugin": "^5.0.6",
+    "offline-plugin": "^5.0.7",
     "path-complete-extname": "^1.0.0",
     "pg": "^6.4.0",
     "postcss-loader": "^3.0.0",