go.mod: upgrade etcd-io/raft to 515b1428 #104483
Merged
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This includes etcd-io/raft#32 which fixes an out-of-memory scenario during election with large unapplied Raft logs.
Part of #104402
Epic: none
Release note (bug fix): Fixed a bug in upstream etcd-io/raft which could result in pulling unlimited amount of log into memory, and lead to out-of-memory situations. With the fix, the log scan has a limited memory footprint.