Add check for group wiki repository envvar pattern (group-##-wiki)

src/main/rb/eca.rb

@@ -55,7 +55,7 @@ gl_repo = ENV['GL_REPOSITORY']
 if (nil_or_empty(gl_repo)) then 
   puts "No Gitlab repository set, likely dealing with non-repo commit, skipping"
   exit 0
-elsif (gl_repo =~ /^wiki-/) then
+elsif (gl_repo =~ /^wiki-/ || gl_repo =~ /^group-\d+-wiki$/) then
   puts "Commit is associated with a wiki, and does not need to be validated. Skipping."
   exit 0
 elsif (gl_repo !~ /^project-/) then