Upgrade sf-notifier requirements

- urllib
- requests
- pytest

Change-Id: I547d17df03efc987123e2cabc962c6c418da8c7f
Related-bug: PRODX-4330
diff --git a/test-requirements.txt b/test-requirements.txt
index de162a9..46292b6 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -6,5 +6,5 @@
 flake8-import-order>=0.17.1 #LGPLv3
 bandit>=1.1.0 # Apache-2.0
 sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
-pytest==4.0.1
+pytest==4.6.9
 pytest-mock==1.10.0