GHA: Agg Update Site work

.github/workflows/update-aggregate-update-sites.yml

@@ -29,7 +29,7 @@ jobs:
           for dir in $dirs
           do
             echo $dir
-            pattern='^e[0-9]\+.[0-9]\+/$'
+            pattern='^e[0-9]+.[0-9]+/$'
             if [[ "$dir" =~ $pattern ]]; then
               echo "eDir ${dir}"  
             fi