Update dependency connection_pool to v3

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
connection_pool (changelog)	'< 3' → '< 4'

---

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

---

Configuration

📅 Schedule: Branch creation - At 12:00 AM through 04:59 AM and 10:00 PM through 11:59 PM, Monday through Friday ( * 0-4,22-23 * * 1-5 ), Only on Sunday and Saturday ( * * * * 0,6 ) (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[coveralls]

coverage: 98.338%. remained the same
when pulling daf1503 on renovate/connection_pool-3.x
into faafac6 on main.