Fix datadog crash

DD-CF-buildpack has a monitoring routine which assumes a multi-buildpack setup
and doesn't work well with our current DD setup. So ignoring the `monit_datadog`
call as it was stopping the DD agents.

buildpack/telemetry/datadog.py

@@ -516,7 +516,7 @@ def _patch_run_datadog_script(script_dir):
         lines = file_handler.readlines()
         file_handler.seek(0)
         for line in lines:
-            if "stop_datadog &" in line:
+            if "monit_datadog &" in line:
                 file_handler.write(f"# {line}")
             else:
                 file_handler.write(line)