Log Message:
net/ruby-connection_pool: update to 2.2.5

2.2.5 (2021-04-15)

* Fix argument forwarding on Ruby 2.7 [#149]

2.2.4 (2021-04-12)

* Add reload to close all connections, recreating them afterwards [Andrew
  Marshall, #140]
* Add then as a way to use a pool or a bare connection with the same code
  path [#138]