This is a known problem in general. There is an open ticket in sbroad:
https://git.picodata.io/picodata/picodata/sbroad/-/issues/542

This is a follow up for 8a2b10e2

Make it possible to pass enabled injections at process startup via env
variables.

If initial call to vshard.router.bootstrap failed with taimeout then
following calls return cluster already bootstrapped error. Make
proc_sharding_bootstrap treat this error as successful bootstrap.

Close: https://git.picodata.io/picodata/picodata/picodata/-/issues/751

If it's set only the "rows" part of the response is returned.
This parameter is True by default because in most cases this is what we
want.

Close #765