Bump train-core to 2.1.13
Bump train-core to 2.1.13

This pull request was triggered automatically via Expeditor when train-core 2.1.13 was promoted to Rubygems.

This change falls under the obvious fix policy so no Developer Certificate of Origin (DCO) sign-off is required.

jaymzh/chef,MsysTechnologiesllc/chef,gene1wood/chef,mattray/chef,tas50/chef-1,chef/chef,higanworks/chef,chef/chef,higanworks/chef,gene1wood/chef,jaymzh/chef,nvwls/chef,chef/chef,MsysTechnologiesllc/chef,mattray/chef,chef/chef,nvwls/chef,mattray/chef,tas50/chef-1,nvwls/chef,tas50/chef-1,mwrock/chef,jaymzh/chef,nvwls/chef,mattray/chef,nvwls/chef,higanworks/chef,MsysTechnologiesllc/chef,nvwls/chef,jaymzh/chef,gene1wood/chef,mwrock/chef,MsysTechnologiesllc/chef,gene1wood/chef,tas50/chef-1,mwrock/chef,mattray/chef,mwrock/chef,higanworks/chef,higanworks/chef