Fixes #3158 - Support overriding access_log_class with handler_args

[orf]

What do these changes do?

Support overriding access_log_class with handler_args

Are there changes in behavior for the user?

Nope, currently it throws an error when this is the case, as described in the ticket

Related issue number

#3158

Checklist

• I think the code is well written
• Unit tests for the changes exist
• Documentation reflects the changes
• If you provide code modification, please add yourself to CONTRIBUTORS.txt
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  • Please keep alphabetical order, the file is sorted by names.
• Add a new news fragment into the CHANGES folder
  • name it <issue_id>.<type> for example (588.bugfix)
  • if you don't have an issue_id change it to the pr id after creating the pr
  • ensure type is one of the following:
    • .feature: Signifying a new feature.
    • .bugfix: Signifying a bug fix.
    • .doc: Signifying a documentation improvement.
    • .removal: Signifying a deprecation or removal of public API.
    • .misc: A ticket has been closed, but it is not of interest to users.
  • Make sure to use full sentences with correct case and punctuation, for example: "Fix issue with non-ascii contents in doctest text files."

[webknjaz]

I think, this should go one line above.

[asvetlov]

@webknjaz feel free to merge please

[codecov-io]

Codecov Report

Merging #3262 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #3262      +/-   ##
==========================================
+ Coverage   97.99%   97.99%   +<.01%     
==========================================
  Files          43       43              
  Lines        7886     7887       +1     
  Branches     1354     1354              
==========================================
+ Hits         7728     7729       +1     
  Misses         65       65              
  Partials       93       93

Impacted Files	Coverage Δ
aiohttp/web_app.py	96.55% <100%> (+0.01%)	⬆️

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[new issue]: https://github.com/aio-libs/aiohttp/issues/new