Bump jinja2 from 2.10.1 to 2.11.3 in /examples/server/wsgi (#658) #nolog

Bumps [jinja2](https://github.com/pallets/jinja) from 2.10.1 to 2.11.3.
- [Release notes](https://github.com/pallets/jinja/releases)
- [Changelog](https://github.com/pallets/jinja/blob/master/CHANGES.rst)
- [Commits](https://github.com/pallets/jinja/compare/2.10.1...2.11.3)

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

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

examples/server/wsgi/requirements.txt

@@ -5,7 +5,7 @@ eventlet==0.20.1
 Flask==1.0.2
 greenlet==0.4.12
 itsdangerous==1.1.0
-Jinja2==2.10.1
+Jinja2==2.11.3
 MarkupSafe==1.1.0
 packaging==16.8
 pyparsing==2.1.10