changes probot label from wontfix to stale
changes probot label from wontfix to stale

exercism/xperl6,mienaikage/exercism-perl6,mienaikage/xperl6,exercism/xperl6,exercism/xperl6,mienaikage/xperl6,mienaikage/xperl6,mienaikage/exercism-perl6,mienaikage/exercism-perl6