Bump jinja2 from 2.10.3 to 2.11.3 in /test

Bumps [jinja2](https://github.com/pallets/jinja) from 2.10.3 to 2.11.3.
- [Release notes](https://github.com/pallets/jinja/releases)
- [Changelog](https://github.com/pallets/jinja/blob/master/CHANGES.rst)
- [Commits](pallets/jinja@2.10.3...2.11.3)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Diff for: test/upstream-requirements-py27.txt

@@ -33,7 +33,7 @@ hypothesis==4.40.0
 idna==2.8
 importlib-metadata==0.23
 ipaddress==1.0.22
-Jinja2==2.10.3
+Jinja2==2.11.3
 jmespath==0.9.4
 jsondiff==1.1.2
 jsonpatch==1.24

Diff for: test/upstream-requirements-py37.txt

@@ -22,7 +22,7 @@ future==0.18.0
 hypothesis==4.40.0
 idna==2.8
 importlib-metadata==0.23
-Jinja2==2.10.3
+Jinja2==2.11.3
 jmespath==0.9.4
 jsondiff==1.1.2
 jsonpatch==1.24