* Fix `process_set_validator_info`
Add space for keys in calculation for rent exempt in
`process_set_validator_info`.
The space required for allocating the `(ConfigKeys, ValidatorInfo)`
tuple only considered space for `ValidatorInfo`.
But `config_instruction::create_account` also requires space for `n`
keys.
* Remove one clone call from closure
(cherry picked from commit 7eaec26a1c
)
Co-authored-by: Enrique Fynn <me@enriquefynn.com>