Bump connection_pool from 2.2.2 to 2.2.3
Bump connection_pool from 2.2.2 to 2.2.3

Bumps [connection_pool](https://github.com/mperham/connection_pool) from 2.2.2 to 2.2.3.
- [Release notes](https://github.com/mperham/connection_pool/releases)
- [Changelog](https://github.com/mperham/connection_pool/blob/master/Changes.md)
- [Commits](https://github.com/mperham/connection_pool/compare/v2.2.2...v2.2.3)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
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