Add dev dependency for testing techdocs-core integration

Author: timo-reymann

pyproject.toml

@@ -119,6 +119,7 @@ dev-dependencies = [
     "mkdocs-gen-files>=0.5.0",
     "mkdocs-git-authors-plugin>=0.9.2",
     "mkdocs-material>=9.6.7",
+    "mkdocs-techdocs-core",
     "mkdocs-monorepo-plugin>=1.1.0",
     "mkdocs-static-i18n>=1.3.0",
     "pytest>=8.3.5",