Update conditional_convert_via_pandoc.yml

.github/workflows/conditional_convert_via_pandoc.yml

@@ -32,7 +32,7 @@ jobs:
         $diff = git diff --name-only --diff-filter=AM "HEAD^" HEAD
 
         # Filter the files under content/ with the .md extension excluding the Hugo associated _index.md files
-        $SourceDiff = $diff | Where-Object { $_ -match '^content/' -and $_ -match '.md$' -and -not ($_ -match '_index.md') }
+        $SourceDiff = $diff | Where-Object { $_ -match 'content/' -and $_ -match '.md$' -and -not ($_ -match '_index.md') }
         $HasDiff = $SourceDiff.Length -gt 0
 
         # Set the output named "bool_files_changed"