test: allow changing location for KeyManager (#3524)
test: allow changing location for KeyManager (#3524)


googleapis/google-cloud-php,chingor13/google-cloud-php,jdpedrie/google-cloud-php,googleapis/google-cloud-php,chingor13/google-cloud-php,jdpedrie/google-cloud-php,chingor13/google-cloud-php,googleapis/google-cloud-php,jdpedrie/google-cloud-php