build(deps): bump jinja2 from 2.11.2 to 2.11.3 in /tests

Bumps [jinja2](https://github.com/pallets/jinja) from 2.11.2 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@2.11.2...2.11.3)

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

Author: dependabot[bot]

tests/requirements.txt

@@ -16,15 +16,11 @@ flask==0.12.5
     # via pytest-flask
 future==0.18.2
     # via radon
-importlib-metadata==3.1.0
-    # via
-    #   pluggy
-    #   pytest
 iniconfig==1.1.1
     # via pytest
 itsdangerous==1.1.0
     # via flask
-jinja2==2.11.2
+jinja2==2.11.3
     # via flask
 mando==0.6.4
     # via radon
@@ -59,5 +55,3 @@ werkzeug==0.16.1
     # via
     #   flask
     #   pytest-flask
-zipp==3.4.0
-    # via importlib-metadata