* backport of commit 93ccfe4c1195ba0ab2d12443f25d9cf29e9e4f0c
* Ensure RSA keys are at least 2048 bits in length (#17911)
* Ensure RSA keys are at least 2048 bits in length
* Add changelog
* update key length check for FIPS compliance
* Fix no new variables error and failing to return when error exists from
validating
* clean up code for better readability
* actually return value
---------
Co-authored-by: jm96441n <john.maguire@hashicorp.com>
hc-github-team-consul-core