chore(deps): bump pymdown-extensions in /hack/api-docs (#5706)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Gergely Brautigam <skarlso777@gmail.com>

hack/api-docs/requirements.txt

@@ -27,7 +27,7 @@ pathspec==0.12.1
 pep562==1.1
 platformdirs==4.5.1
 Pygments==2.19.2
-pymdown-extensions==10.17.2
+pymdown-extensions==10.18
 python-dateutil==2.9.0.post0
 PyYAML==6.0.3
 pyyaml_env_tag==1.1