Bump connection_pool from 2.5.5 to 3.0.2

Bumps [connection_pool](https://github.com/mperham/connection_pool) from 2.5.5 to 3.0.2.
- [Changelog](https://github.com/mperham/connection_pool/blob/main/Changes.md)
- [Commits](mperham/connection_pool@v2.5.5...v3.0.2)

---
updated-dependencies:
- dependency-name: connection_pool
  dependency-version: 3.0.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

Gemfile

@@ -62,5 +62,5 @@ end
 # Required for memcached
 group :production do
   gem "dalli"
-  gem "connection_pool", "~> 2.4"
+  gem "connection_pool", "~> 3.0"
 end

Gemfile.lock

@@ -123,7 +123,7 @@ GEM
       logger (~> 1.5)
     coderay (1.1.3)
     concurrent-ruby (1.3.6)
-    connection_pool (2.5.5)
+    connection_pool (3.0.2)
     coveralls (0.7.1)
       multi_json (~> 1.3)
       rest-client
@@ -580,7 +580,7 @@ DEPENDENCIES
   bootstrap
   brakeman
   capybara
-  connection_pool (~> 2.4)
+  connection_pool (~> 3.0)
   coveralls
   cssbundling-rails
   csv