Fix jinja 3.1 issue

tox.ini

@@ -7,6 +7,7 @@ skipsdist = false
 passenv = TOXENV, CI, TRAVIS, TRAVIS_*, CODECOV_*
 deps = -r{toxinidir}/tests/requirements.txt
     v3004.2: salt<3004.2
+    v3004.2: jinja2<3.1
     v3005.1: salt<3005.1
     master: git+https://github.com/saltstack/salt.git@master#egg=salt