Update aiohttp to 3.3.1 (#78)

This PR updates [aiohttp](https://pypi.org/project/aiohttp) from **3.2.1** to **3.3.1**.



<details>
  <summary>Changelog</summary>
  
  
   ### 3.3.0
   ```
   ==================

Features
--------

- Raise ``ConnectionResetError`` instead of ``CancelledError`` on trying to
  write to a closed stream. (`2499 &lt;https://github.com/aio-libs/aiohttp/pull/2499&gt;`_)
- Implement ``ClientTimeout`` class and support socket read timeout. (`2768 &lt;https://github.com/aio-libs/aiohttp/pull/2768&gt;`_)
- Enable logging when ``aiohttp.web`` is used as a program (`2956 &lt;https://github.com/aio-libs/aiohttp/pull/2956&gt;`_)
- Add canonical property to resources (`2968 &lt;https://github.com/aio-libs/aiohttp/pull/2968&gt;`_)
- Forbid reading response BODY after release (`2983 &lt;https://github.com/aio-libs/aiohttp/pull/2983&gt;`_)
- Implement base protocol class to avoid a dependency from internal
  ``asyncio.streams.FlowControlMixin`` (`2986 &lt;https://github.com/aio-libs/aiohttp/pull/2986&gt;`_)
- Cythonize ``helpers.reify``, 5% boost on macro benchmark (`2995 &lt;https://github.com/aio-libs/aiohttp/pull/2995&gt;`_)
- Optimize HTTP parser (`3015 &lt;https://github.com/aio-libs/aiohttp/pull/3015&gt;`_)
- Implement ``runner.addresses`` property. (`3036 &lt;https://github.com/aio-libs/aiohttp/pull/3036&gt;`_)
- Use ``bytearray`` instead of a list of ``bytes`` in websocket reader. It
  improves websocket message reading a little. (`3039 &lt;https://github.com/aio-libs/aiohttp/pull/3039&gt;`_)
- Remove heartbeat on closing connection on keepalive timeout. The used hack
  violates HTTP protocol. (`3041 &lt;https://github.com/aio-libs/aiohttp/pull/3041&gt;`_)
- Limit websocket message size on reading to 4 MB by default. (`3045 &lt;https://github.com/aio-libs/aiohttp/pull/3045&gt;`_)


Bugfixes
--------

- Don&#39;t reuse a connection with the same URL but different proxy/TLS settings
  (`2981 &lt;https://github.com/aio-libs/aiohttp/pull/2981&gt;`_)
- When parsing the Forwarded header, the optional port number is now preserved.
  (`3009 &lt;https://github.com/aio-libs/aiohttp/pull/3009&gt;`_)


Improved Documentation
----------------------

- Make Change Log more visible in docs (`3029 &lt;https://github.com/aio-libs/aiohttp/pull/3029&gt;`_)
- Make style and grammar improvements on the FAQ page. (`3030 &lt;https://github.com/aio-libs/aiohttp/pull/3030&gt;`_)
- Document that signal handlers should be async functions since aiohttp 3.0
  (`3032 &lt;https://github.com/aio-libs/aiohttp/pull/3032&gt;`_)


Deprecations and Removals
-------------------------

- Deprecate custom application&#39;s router. (`3021 &lt;https://github.com/aio-libs/aiohttp/pull/3021&gt;`_)


Misc
----

- 3008, 3011
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/aiohttp
  - Changelog: https://pyup.io/changelogs/aiohttp/
  - Repo: https://github.com/aio-libs/aiohttp
</details>

requirements.txt

@@ -3,7 +3,7 @@ six==1.11.0
 firebase-admin==2.11.0
 
 uvloop==0.10.0
-aiohttp==3.2.1
+aiohttp==3.3.1
 cchardet==2.1.1
 aiodns==1.1.1