mps: test runner: adjust delays when waiting for replies

Previously, while `runner.py` was waiting for a response from the RTS,
it would send an update-display (`D`) command every second.  In the
nested-VM setup, updating the display is fairly expensive due to the I/O
involved.  If the MPS got behind for any reason, in order to catch up,
it would need to process not only the pending command but all the
update-display commands that were sent while the test runner was
waiting.  Sending an update-display command every second thus severely
exacerbated the slow performance of the nested-VM setup.

This commit changes `runner.py` to send the update-display command every
10 seconds instead of every second.  The test suite now behaves more
reliably in the nested-VM setup.

components/mission_protection_system/tests/runner.py

@@ -28,7 +28,7 @@
 RTS_SOCKET = os.environ.get("RTS_SOCKET")
 RTS_DEBUG = os.environ.get("RTS_DEBUG") is not None
 
-def try_expect(p,expected,timeout=1,retries=60):
+def try_expect(p,expected,timeout=10,retries=10):
     expected = expected.strip()
     if RTS_DEBUG:
         print(f"CHECKING: {expected}")