kvprober: add metrics to the registry & catalog #61524
Merged
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#61074
kvprober: add metrics to the registry & catalog
This commit adds the kvprober metrics to the registry so they are
exported at the prometheus endpoint and tracked in CRDB's time-series
DB. This commit also adds the kvprober metrics to the catalog since
that is required by a unit test.
Release justification: Auxiliary system that is off by default.
Release note: None.