Suppress clang-tidy mem leak warning on QMetaObject::invokeMethod

We don't leak, but clang-tidy is printing this warning. Possibly because
it sees a new with no matched delete in the same context, ignoring the
fact that the pointer was gifted to the called function.

Fixes: QTBUG-119972
Pick-to: 6.5
Change-Id: I6e2677aad2ab45759db2fffd17a06c57c3a463ba
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
(cherry picked from commit a337b8360f149313f5bf37dc5867413d846a3a97)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit b0c031b51b870fc52701f0c445718375a682cb84)

src/corelib/kernel/qobjectdefs_impl.h

@@ -589,6 +589,7 @@ namespace QtPrivate {
         static_assert(int(ActualSignature::ArgumentCount) <= int(ExpectedSignature::ArgumentCount),
             "Functor requires more arguments than what can be provided.");
 
+        // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks)
         return new QtPrivate::QCallableObject<std::decay_t<Functor>, ActualArguments, ExpectedReturnType>(std::forward<Functor>(func));
     }