gc_worker: Fix the issue that GCWorker will stop working after a GC failure (#16372)
gc_worker: Fix the issue that GCWorker will stop working after a GC failure (#16372)


c4pt0r/tidb,EvilMcJerkface/tidb,pingcap/tidb,pingcap/tidb,pingcap/tidb,kyle-wang/tidb,c4pt0r/tidb,ngaut/tidb,XuHuaiyu/tidb,XuHuaiyu/tidb,kyle-wang/tidb,pingcap/tidb,coocood/tidb,kyle-wang/tidb,EvilMcJerkface/tidb,kyle-wang/tidb,ngaut/tidb,ngaut/tidb,pingcap/tidb,c4pt0r/tidb,kyle-wang/tidb,c4pt0r/tidb,pingcap/tidb,c4pt0r/tidb,coocood/tidb,ngaut/tidb,ngaut/tidb,kyle-wang/tidb,c4pt0r/tidb,ngaut/tidb