chore: update pytest version (#2703)

* chore: update pytest version

* chore: specify junit family

Author: busunkim96

pytest.ini

@@ -4,3 +4,4 @@ addopts =
     --no-success-flaky-report
     --tb=native
 norecursedirs = .git env lib .tox .nox
+junit_family = xunit2

testing/requirements.txt

@@ -5,8 +5,8 @@ funcsigs==1.0.2
 mock==3.0.5
 PyCrypto==2.6.1
 pytest-cov==2.8.1
-pytest==5.3.0; python_version > "3.0"
-pytest==4.6.6; python_version < "3.0"
+pytest==5.3.2; python_version > "3.0"
+pytest==4.6.9; python_version < "3.0"
 pyyaml==5.1.2
 responses==0.10.6
 WebTest==2.0.33