Updated potential memory leak detection

Author: aljazdu

tests/stability/stability_test_depthai.py

@@ -89,7 +89,7 @@ def stability_test(fps):
             # Detect memory leaks
             processMemoryUsage = p.getDefaultDevice().getProcessMemoryUsage()
             if processMemoryUsage > MEMORY_LEAK_DETECTION_THRESHOLD * initialProcessMemoryUsage:
-                sys.exit("Memory leak detected!")
+                raise RuntimeError("Memory used by depthai-device process increased above the given threshold - potential memory leak detected")
             print(f"Memory used by depthai-device process: {processMemoryUsage} kB. Current time: {time.strftime('%Y-%m-%d %H:%M:%S', time.localtime())}")
             print(f"Running for {datetime.timedelta(seconds=time.time() - tStart)}", flush=True)