create act work and cache dir

docs/developer/cicd_runner.md

@@ -115,9 +115,14 @@ Created uv cache dir, for `UV_CACHE_DIR`:
 sudo mkdir -m 777 /var/cache/uv
 ```
 
-Change the location of the working directory (uv .venvs are built here, take up lots of space)
+Change the location of the act cache and working directory (uv .venvs are built here, take up lots of space)
 
-edit `/etc/act_runner/config.yaml`
+```
+sudo mkdir -m 777 /var/lib/act_runner/cache
+sudo mkdir -m 777 /var/lib/act_runner/work
+```
+
+and edit `/etc/act_runner/config.yaml`
 
 ```
 cache: