repair: don't lambda-capture repair_tracker
repair: don't lambda-capture repair_tracker

It is static, so it need not be captured, and some compilers complain.

duarten/scylla,scylladb/scylla,scylladb/scylla,scylladb/scylla,scylladb/scylla,duarten/scylla,avikivity/scylla,avikivity/scylla,duarten/scylla,avikivity/scylla