Update dependency connection_pool to v3

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
connection_pool (changelog)	'~> 2.4' → '~> 3.0'

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Release Notes

mperham/connection_pool (connection_pool)

v3.0.2

Compare Source

• Support :name keyword for backwards compatibility [#​210]

v3.0.1

Compare Source

• Add missing fork.rb to gemspec.

v3.0.0

Compare Source

• BREAKING CHANGES ConnectionPool and ConnectionPool::TimedStack now
  use keyword arguments rather than positional arguments everywhere. Expected impact is minimal as most people use the with API, which is unchanged.

pool = ConnectionPool.new(size: 5, timeout: 5)
pool.checkout(1) # 2.x
pool.reap(30)    # 2.x
pool.checkout(timeout: 1) # 3.x
pool.reap(idle_seconds: 30) # 3.x

• Dropped support for Ruby <3.2.0

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[coveralls]

coverage: 99.072%. remained the same — renovate/connection_pool-3.x into main

[renovate]

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