fix: only try to start tasks that are really there

This fixes an annoying issue where concurrent tasks would try to start
multiple tasks even when there was not that many tasks to run in the
first place, causing some amount of log spam.

Signed-off-by: flow <flowlnlnln@gmail.com>

launcher/tasks/ConcurrentTask.cpp

@@ -37,7 +37,8 @@ void ConcurrentTask::executeTask()
 {
     m_total_size = m_queue.size();
 
-    for (int i = 0; i < m_total_max_size; i++) {
+    int num_starts = std::min(m_total_max_size, m_total_size);
+    for (int i = 0; i < num_starts; i++) {
         QMetaObject::invokeMethod(this, &ConcurrentTask::startNext, Qt::QueuedConnection);
     }
 }