* PT-2084 Readding SHOW SLAVE STATUS outputs to pt-stalk
Before, they were only gathered if version was 5.6 or prior.
Now, they are always gathered, no matter what version.
Since ${mysql_version} is only major.minor, we can't yet add
SHOW REPLICA STATUS, because it starts on 8.0.22 and we have
no way to check that. We will need to wait for 8.1 release.
* PT-2084 Ran update-modules to generate binaries with changes.
* PT-2084 Added checks for preemptive 8.1 SHOW SLAVE STATUS removal.
* PT-2084 Adding test case for SHOW SLAVE STATUS
* Update t/pt-stalk/pt-stalk-replication.t
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Co-authored-by: Sveta Smirnova <svetasmirnova@users.noreply.github.com>