tst_QSslCertificate::pkcs12 - skip the test if OpenSSL version >= 3

leaf.p12 is using RC2 for encryption and it's disabled by default
in openssl v3.

Pick-to: 6.4 6.3 6.2 5.15
Fixes: QTBUG-106017
Change-Id: I4edd0d29506d1e50b2b618b6a00cceeb4b156204
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>

tests/auto/network/ssl/qsslcertificate/tst_qsslcertificate.cpp

@@ -14,6 +14,7 @@
 #include <qscopeguard.h>
 
 #ifndef QT_NO_OPENSSL
+#include <openssl/opensslv.h>
 #include <openssl/obj_mac.h>
 #endif
 
@@ -1377,6 +1378,10 @@ void tst_QSslCertificate::pkcs12()
         return;
     }
 
+#if !defined(QT_NO_OPENSSL) && OPENSSL_VERSION_MAJOR >= 3
+    QSKIP("leaf.p12 is using RC2, which is disabled by default in OpenSSL v >= 3");
+#endif
+
     QFile f(testDataDir + QLatin1String("pkcs12/leaf.p12"));
     bool ok = f.open(QIODevice::ReadOnly);
     QVERIFY(ok);