Skip SSH key strength check for ECDSA keys
Skip SSH key strength check for ECDSA keys

This appears only to be relevant for RSA and DSA keys and was already being ignored for newer Ed25519 keys, but ECDSA keys were still being checked.

alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet