chore(deps): bump squidfunk/mkdocs-material from `8f41b60` to `868ad4d` in /docs (#8083)

chore(deps): bump squidfunk/mkdocs-material in /docs

Bumps squidfunk/mkdocs-material from `8f41b60` to `868ad4d`.

---
updated-dependencies:
- dependency-name: squidfunk/mkdocs-material
  dependency-version: 868ad4d39fb5865b72d00173ade00f4eae2b38dde7ff790a011cc44ce4a8ff8e
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Leandro Damascena <lcdama@amazon.pt>