fix(deps): update mkdocs-material to v9.6.15

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence	Type	Update
mkdocs-material (changelog)	==9.6.14 -> ==9.6.15			project.dependencies	patch
squidfunk/mkdocs-material	9.6.14 -> 9.6.15			stage	patch

---

Release Notes

squidfunk/mkdocs-material (mkdocs-material)

v9.6.15: mkdocs-material-9.6.15

Compare Source

• Updated Mongolian translations
• Improved semantic markup of "edit this page" button
• Improved info plugin virtual environment resolution
• Fixed #​8291: Large font size setting throws of breakpoints in JavaScript

---

Configuration

📅 Schedule: Branch creation - "before 12pm on Monday" in timezone America/Toronto, Automerge - At any time (no schedule defined).

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

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

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

---

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

---

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