Bump mongoid from 8.0.3 to 8.0.7

Bumps [mongoid](https://github.com/mongodb/mongoid) from 8.0.3 to 8.0.7.
- [Release notes](https://github.com/mongodb/mongoid/releases)
- [Changelog](https://github.com/mongodb/mongoid/blob/master/CHANGELOG.md)
- [Commits](mongodb/mongoid@v8.0.3...v8.0.7)

---
updated-dependencies:
- dependency-name: mongoid
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile.lock

@@ -250,8 +250,8 @@ GEM
     mongo_session_store (3.2.1)
       actionpack (>= 4.0)
       mongo (~> 2.0)
-    mongoid (8.0.3)
-      activemodel (>= 5.1, < 7.1, != 7.0.0)
+    mongoid (8.0.7)
+      activemodel (>= 5.1, < 7.2, != 7.0.0)
       mongo (>= 2.18.0, < 3.0.0)
       ruby2_keywords (~> 0.0.5)
     mongoid-locker (2.0.2)