Set OPENXPKI_CLIENT_CONF_DIR for tests even if not currently used
Set OPENXPKI_CLIENT_CONF_DIR for tests even if not currently used

oliwel/openxpki,openxpki/openxpki,openxpki/openxpki,oliwel/openxpki,oliwel/openxpki,oliwel/openxpki,oliwel/openxpki,openxpki/openxpki,openxpki/openxpki,oliwel/openxpki