mention the compatibility issue on GH actions

docs/docs/advanced.md

@@ -99,3 +99,6 @@ Testing:
       run: |
         pdm run -v pytest tests
 ```
+
+!!! danger "NOTE"
+    For GitHub Action users, there is a [known compatibility issue](https://github.com/actions/virtual-environments/issues/2803) on Ubuntu virtual environment. If PDM parallel install is failed on that machine you should either set `parallel_install` to `false` or set env `LD_PRELOAD=/lib/x86_64-linux-gnu/libgcc_s.so.1`.