kdsoap-test_wsdl_document fails on s390x

[PureTryOut]

I could reproduce this reliably on the Alpine Linux CI.

15/49 Test #15: kdsoap-test_wsdl_document .............Subprocess aborted***Exception:  20.08 sec
********* Start testing of WsdlDocumentTest *********
Config: Using QtTest library 5.15.3, Qt 5.15.3 (s390x-big_endian-lp64 shared (dynamic) release build; by GCC 10.3.1 20210409), alpine 3.14.0_alpha20210212
PASS   : WsdlDocumentTest::initTestCase()
PASS   : WsdlDocumentTest::testMyWsdlPublic()

=== Received signal at function time: 20047ms, total time: 20059ms, dumping stack ===
=== End of stack trace ===
QFATAL : WsdlDocumentTest::testSslError() Received signal 11
         Function time: 20047ms Total time: 20059ms
FAIL!  : WsdlDocumentTest::testSslError() Received a fatal error.
   Loc: [Unknown file(0)]
Totals: 2 passed, 1 failed, 0 skipped, 0 blacklisted, 20060ms
********* Finished testing of WsdlDocumentTest *********