Bump mongo from 2.20.0 to 2.20.1

Bumps [mongo](https://github.com/mongodb/mongo-ruby-driver) from 2.20.0 to 2.20.1.
- [Release notes](https://github.com/mongodb/mongo-ruby-driver/releases)
- [Changelog](https://github.com/mongodb/mongo-ruby-driver/blob/master/docs/release-notes.txt)
- [Commits](mongodb/mongo-ruby-driver@v2.20.0...v2.20.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile

@@ -12,7 +12,7 @@ gem "gds-sso"
 gem "govuk_app_config"
 gem "govuk_sidekiq"
 gem "jwt"
-gem "mongo", "~> 2.20.0"
+gem "mongo", "~> 2.20.1"
 gem "mongoid"
 gem "nokogiri"
 gem "plek"

Gemfile.lock

@@ -246,7 +246,7 @@ GEM
     mini_mime (1.1.5)
     mini_portile2 (2.8.7)
     minitest (5.24.1)
-    mongo (2.20.0)
+    mongo (2.20.1)
       bson (>= 4.14.1, < 6.0.0)
     mongoid (8.1.5)
       activemodel (>= 5.1, < 7.2, != 7.0.0)
@@ -767,7 +767,7 @@ DEPENDENCIES
   govuk_sidekiq
   jwt
   listen
-  mongo (~> 2.20.0)
+  mongo (~> 2.20.1)
   mongoid
   nokogiri
   pact