Update ghpages-mkdocs.yml

Author: crpietschmann

.github/workflows/ghpages-mkdocs.yml

@@ -10,7 +10,7 @@ on:
       - docs/**
       - mkdocs.yml
     paths-ignore:
-      -.github/**
+      - .github/**
   workflow_dispatch:
 
 # Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages