Logging: remove const from the lambda calling dladdr

In some OSes, the function takes a plain void*.

Pick-to: 6.4
Fixes: QTBUG-106980
Change-Id: I810d70e579eb4e2c8e45fffd1718bdaf94d8ac0e
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>

src/corelib/global/qlogging.cpp

@@ -1332,7 +1332,7 @@ static QStringList backtraceFramesForLogMessage(int frameCount)
     // use dladdr() instead of backtrace_symbols()
     QString cachedLibrary;
     const char *cachedFname = nullptr;
-    auto decodeFrame = [&](const void *addr) -> DecodedFrame {
+    auto decodeFrame = [&](void *addr) -> DecodedFrame {
         Dl_info info;
         if (!dladdr(addr, &info))
             return {};