Reenable BWC tests after global checkpoint sync
Reenable BWC tests after global checkpoint sync

This commit reenables the BWC tests after the introduction of the
post-operation and background global checkpoint sync.

Relates #26591

ThiagoGarciaAlves/elasticsearch,qwerty4030/elasticsearch,masaruh/elasticsearch,HonzaKral/elasticsearch,GlenRSmith/elasticsearch,kalimatas/elasticsearch,kalimatas/elasticsearch,gingerwizard/elasticsearch,s1monw/elasticsearch,ThiagoGarciaAlves/elasticsearch,masaruh/elasticsearch,rajanm/elasticsearch,pozhidaevak/elasticsearch,pozhidaevak/elasticsearch,uschindler/elasticsearch,wenpos/elasticsearch,GlenRSmith/elasticsearch,coding0011/elasticsearch,uschindler/elasticsearch,ThiagoGarciaAlves/elasticsearch,markwalkom/elasticsearch,ThiagoGarciaAlves/elasticsearch,mjason3/elasticsearch,nknize/elasticsearch,qwerty4030/elasticsearch,wenpos/elasticsearch,wangtuo/elasticsearch,nknize/elasticsearch,rajanm/elasticsearch,scorpionvicky/elasticsearch,nknize/elasticsearch,gingerwizard/elasticsearch,wenpos/elasticsearch,gfyoung/elasticsearch,ThiagoGarciaAlves/elasticsearch,mjason3/elasticsearch,rajanm/elasticsearch,uschindler/elasticsearch,s1monw/elasticsearch,GlenRSmith/elasticsearch,fred84/elasticsearch,scorpionvicky/elasticsearch,scorpionvicky/elasticsearch,wangtuo/elasticsearch,coding0011/elasticsearch,rajanm/elasticsearch,maddin2016/elasticsearch,mjason3/elasticsearch,fred84/elasticsearch,s1monw/elasticsearch,scottsom/elasticsearch,mjason3/elasticsearch,gfyoung/elasticsearch,mjason3/elasticsearch,qwerty4030/elasticsearch,gingerwizard/elasticsearch,robin13/elasticsearch,coding0011/elasticsearch,gingerwizard/elasticsearch,uschindler/elasticsearch,gingerwizard/elasticsearch,nknize/elasticsearch,pozhidaevak/elasticsearch,scottsom/elasticsearch,markwalkom/elasticsearch,scorpionvicky/elasticsearch,robin13/elasticsearch,coding0011/elasticsearch,fred84/elasticsearch,kalimatas/elasticsearch,wangtuo/elasticsearch,scottsom/elasticsearch,markwalkom/elasticsearch,GlenRSmith/elasticsearch,gingerwizard/elasticsearch,scottsom/elasticsearch,ThiagoGarciaAlves/elasticsearch,HonzaKral/elasticsearch,masaruh/elasticsearch,maddin2016/elasticsearch,masaruh/elasticsearch,markwalkom/elasticsearch,maddin2016/elasticsearch,kalimatas/elasticsearch,gfyoung/elasticsearch,gingerwizard/elasticsearch,wenpos/elasticsearch,fred84/elasticsearch,HonzaKral/elasticsearch,gfyoung/elasticsearch,uschindler/elasticsearch,kalimatas/elasticsearch,coding0011/elasticsearch,masaruh/elasticsearch,s1monw/elasticsearch,maddin2016/elasticsearch,robin13/elasticsearch,GlenRSmith/elasticsearch,robin13/elasticsearch,scorpionvicky/elasticsearch,pozhidaevak/elasticsearch,fred84/elasticsearch,markwalkom/elasticsearch,s1monw/elasticsearch,HonzaKral/elasticsearch,qwerty4030/elasticsearch,gfyoung/elasticsearch,wangtuo/elasticsearch,rajanm/elasticsearch,markwalkom/elasticsearch,wenpos/elasticsearch,rajanm/elasticsearch,nknize/elasticsearch,robin13/elasticsearch,wangtuo/elasticsearch,maddin2016/elasticsearch,qwerty4030/elasticsearch,pozhidaevak/elasticsearch,scottsom/elasticsearch