Bump jinja2 from 2.11.2 to 2.11.3 (#36)

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] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -10,7 +10,7 @@ future==0.18.2
 hyperopt==0.2.5
 idna==2.9
 imagesize==1.2.0
-Jinja2==2.11.2
+Jinja2==2.11.3
 joblib==0.14.1
 lightgbm==2.3.1
 MarkupSafe==1.1.1