Extend procstat_running-based metric alerts.

Related-PROD: PROD-35435
Change-Id: I8529226a99e4e2f6fd67873caa4e94ae893c8a25
diff --git a/tests/test-requirements.txt b/tests/test-requirements.txt
index 7188b2b..bc7dc7f 100644
--- a/tests/test-requirements.txt
+++ b/tests/test-requirements.txt
@@ -1,3 +1,4 @@
 jsonschema
 reno
 setuptools<45.0.0
+msgpack<1.0.0