Resolve pytest pluggy version conflict (#1457)

caboteria · sethmlarson · commit cd7cfa613b26 · 2018-10-17T07:35:59.000-05:00
diff --git a/dev-requirements.txt b/dev-requirements.txt
@@ -7,7 +7,8 @@ tornado==5.0.2
 PySocks==1.6.8
 pkginfo==1.4.2
 pytest-timeout==1.3.1
-pytest==3.6.4
+pytest==3.8.2
 # https://github.com/GoogleCloudPlatform/python-repo-tools/issues/23
 pylint<2.0;python_version<="2.7"
 gcp-devrel-py-tools==0.0.15
+pluggy==0.8.0
