ci(docs): Update python_files matcher

Author: tony

.github/workflows/docs.yml

@@ -26,7 +26,7 @@ jobs:
               - 'docs/**'
               - 'examples/**'
             python_files:
-              - 'libtmux/**'
+              - 'src/libtmux/**'
               - poetry.lock
               - pyproject.toml