ipatests: Ignore spacing in OpenSSL validation error message
    
    The error message format changed between releases of OpenSSL.
    The updated version has dropped spaces around equal signs
    between RDN elements in the subject.
    
    e.g. In 3.1.1 it reports O = EXAMPLE.TEST, CN = IPA RA
    and in 3.2.1 reports O=EXAMPLE.TEST, CN=IPA RA
    
    So ignore all spacing in the error message so it works on all
    versions.
    
    I saw this in openssl-3.1.1-4.fc39.x86_64 vs
    openssl-3.2.1-3.fc41.x86_64
    
    Fixes: https://pagure.io/freeipa/issue/9567
    
    Signed-off-by: Rob Crittenden <rcritten@redhat.com>
    Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>