Update pre-commit hook fsfe/reuse-tool to v4.0.3

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
fsfe/reuse-tool	repository	patch	v4.0.2 -> v4.0.3

Note: The pre-commit manager in Renovate is not supported by the pre-commit maintainers or community. Please do not report any problems there, instead create a Discussion in the Renovate repository if you have any questions.

---

Release Notes

fsfe/reuse-tool (fsfe/reuse-tool)

### [`v4.0.3`](https://togithub.com/fsfe/reuse-tool/releases/tag/v4.0.3) [Compare Source](https://togithub.com/fsfe/reuse-tool/compare/v4.0.2...v4.0.3) ##### Fixed - Increased the minimum requirement of `attrs` to `>=21.3`. Older versions do not import correctly. ([#​1044](https://togithub.com/fsfe/reuse-tool/issues/1044))

---

Configuration

📅 Schedule: Branch creation - "every weekday" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, 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 has been generated by Mend Renovate. View repository job log here.