build(deps): update mkdocs-include-markdown-plugin requirement (#403)

Updates the requirements on [mkdocs-include-markdown-plugin](https://github.com/mondeja/mkdocs-include-markdown-plugin) to permit the latest version.

Updates `mkdocs-include-markdown-plugin` to 7.0.0
- [Release notes](https://github.com/mondeja/mkdocs-include-markdown-plugin/releases)
- [Commits](mondeja/mkdocs-include-markdown-plugin@v6.0.0...v7.0.0)

---
updated-dependencies:
- dependency-name: mkdocs-include-markdown-plugin
  dependency-type: direct:production
  dependency-group: docs
...

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

pyproject.toml

@@ -48,7 +48,7 @@ optional-dependencies.dev = [
 optional-dependencies.docs = [
   "mike~=2.1",
   "mkdocs~=1.6",
-  "mkdocs-include-markdown-plugin~=6.0",
+  "mkdocs-include-markdown-plugin~=7.0",
   "mkdocs-material~=9.5",
   "mkdocs-minify-plugin~=0.7",
   "mkdocstrings[python]~=0.25",