Bump aiohttp from 3.5.3 to 3.5.4

Bumps [aiohttp](https://github.com/aio-libs/aiohttp) from 3.5.3 to 3.5.4.
- [Release notes](https://github.com/aio-libs/aiohttp/releases)
- [Changelog](https://github.com/aio-libs/aiohttp/blob/master/HISTORY.rst)
- [Commits](https://github.com/aio-libs/aiohttp/compare/v3.5.3...v3.5.4)

Signed-off-by: dependabot[bot] <support@dependabot.com>

setup.py

@@ -8,7 +8,7 @@ setup(
     packages = ['python3_anticaptcha'],
     install_requires = [
                         'requests==2.21.0',
-                        'aiohttp==3.5.3',
+                        'aiohttp==3.5.4',
                         'pika==0.12.0'
     ],
     description = 'Python 3 Anti-Captcha service library with AIO module.',