Bump mongoid from 7.1.5 to 7.2.1 (#284)

Bumps [mongoid](https://github.com/mongodb/mongoid) from 7.1.5 to 7.2.1.
- [Release notes](https://github.com/mongodb/mongoid/releases)
- [Changelog](https://github.com/mongodb/mongoid/blob/master/CHANGELOG.md)
- [Commits](mongodb/mongoid@v7.1.5...v7.2.1)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
Co-authored-by: Dillon Welch <daw0328@gmail.com>

Gemfile.lock

@@ -57,7 +57,7 @@ GEM
     backport (1.1.2)
     bcrypt (3.1.16)
     benchmark (0.1.0)
-    bson (4.11.1)
+    bson (4.12.0)
     builder (3.2.4)
     byebug (11.1.3)
     coderay (1.1.3)
@@ -107,11 +107,11 @@ GEM
     minitest-rails (5.2.0)
       minitest (~> 5.10)
       railties (~> 5.2.0)
-    mongo (2.13.1)
+    mongo (2.14.0)
       bson (>= 4.8.2, < 5.0.0)
-    mongoid (7.1.5)
-      activemodel (>= 5.1, < 6.1)
-      mongo (>= 2.7.0, < 3.0.0)
+    mongoid (7.2.1)
+      activemodel (>= 5.1, < 6.2)
+      mongo (>= 2.10.5, < 3.0.0)
     nio4r (2.5.5)
     nokogiri (1.11.1)
       mini_portile2 (~> 2.5.0)