Update dependency click to v8.4.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
click (changelog)	8.4.0 → 8.4.1

---

Release Notes

pallets/click (click)

v8.4.1

Compare Source

Released 2026-05-21

• get_parameter_source() is available during eager callbacks and type
  conversion again. :issue:3458 :issue:3484
• Zsh completion scripts parse correctly on Windows. :issue:3277 :pr:3466
• Shell completion of Choice Enum values produces a valid completion
  result. :issue:3015
• Fix empty byte-string handling in echo. :issue:3487
• Fix closed file error with echo_via_pager. :issue:3449

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• 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.