Bump aiohttp-jinja2 from 1.2.0 to 1.3.0 (#182)

Bumps [aiohttp-jinja2](https://github.com/aio-libs/aiohttp_jinja2) from 1.2.0 to 1.3.0.
- [Release notes](https://github.com/aio-libs/aiohttp_jinja2/releases)
- [Changelog](https://github.com/aio-libs/aiohttp-jinja2/blob/master/CHANGES.rst)
- [Commits](aio-libs/aiohttp-jinja2@v1.2.0...v1.3.0)

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Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

requirements.txt

@@ -1,5 +1,5 @@
 aiohttp==3.6.2
-aiohttp-jinja2==1.2.0
+aiohttp-jinja2==1.3.0
 gidgethub==4.1.1
 aiohttp-session[secure]==2.9.0
 pyjwt==1.7.1