Bump cairocffi from 1.7.0 to 1.7.1 (#170)

Bumps [cairocffi](https://github.com/Kozea/cairocffi) from 1.7.0 to 1.7.1.
- [Release notes](https://github.com/Kozea/cairocffi/releases)
- [Changelog](https://github.com/Kozea/cairocffi/blob/main/NEWS.rst)
- [Commits](Kozea/cairocffi@v1.7.0...v1.7.1)

---
updated-dependencies:
- dependency-name: cairocffi
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

docs/requirements.txt

@@ -7,6 +7,6 @@ mkdocs-material==9.5.26
 mkdocs-minify-plugin==0.7.1
 mkdocs-static-i18n==1.2
 mkdocs-git-committers-plugin-2==2.2.2
-cairocffi==1.7.0
+cairocffi==1.7.1
 cairosvg==2.7.1
 defusedxml==0.7.1