Automatic merge from submit-queue (batch tested with PRs 37701, 36702, 37145, 37424, 38261)

Limit unbound label cardinality on request errors

This converts all request errors to the string `<error>` instead of
passing the full error string. Error strings can have arbitrary values
and thus have a cardinality that is not suitable for a metric
use case.

Inspecting individual errors is a logging use case which can be handled separately by registering a client error handler.

@kubernetes/sig-instrumentation