Issue 50834 - Incorrectly setting the NSS default SSL version max
Description: We've been using the wrong function to get the NSS max
version We were calling SSL_VersionRangeGetSupported()
which gets the versions NSS "can" handle, but
SSL_VersionRangeGetDefault() gets the versions that
are actually "enabled".
relates: https://pagure.io/389-ds-base/issue/50834
Reviewed by: mreynolds(one line commit rule)