Update dependency mkdocs-material to v9.5.21

This MR contains the following updates:

Package	Update	Change
mkdocs-material (changelog)	patch	9.5.20 -> 9.5.21
mkdocs-material (changelog)	patch	==9.5.20 -> ==9.5.21

---

Release Notes

squidfunk/mkdocs-material (mkdocs-material)

v9.5.21: mkdocs-material-9.5.21

Compare Source

• Fixed #​7133: Ensure latest version of Mermaid.js is used
• Fixed #​7125: Added warning for dotfiles in info plugin

Thanks to @​kamilkrzyskow for their contributions

---

Configuration

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

🚦 Automerge: Enabled.

♻ Rebasing: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this MR and you won't be reminded about these updates again.

---

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

---

This MR has been generated by Renovate Bot.