Support up-to-date botocore

[jakob-keller]

Description of Change

This PR intends to improve general compatibility of aiobotocore within the Python ecosystem by bumping the dependency specification of botocore, as well as boto3 and awscli.

Assumptions

Upstream diff contains minor changes that require adjustments to the aiobotocore codebase.

Checklist for All Submissions

• I have added change info to CHANGES.rst
• If this is resolving an issue (needed so future developers can determine if change is still necessary and under what conditions) (can be provided via link to issue with these details): closes upgrade botocore dependency to 1.34.98? #1114
  • Detailed description of issue
  • Alternative methods considered (if any)
  • How issue is being resolved
  • How issue can be reproduced
• If this is providing a new feature (can be provided via link to issue with these details):
  • Detailed description of new feature
  • Why needed
  • Alternatives methods considered (if any)

Checklist when updating botocore and/or aiohttp versions

• I have read and followed CONTRIBUTING.rst
• I have updated test_patches.py where/if appropriate (also check if no changes necessary)
• I have ensured that the awscli/boto3 versions match the updated botocore version

[codecov]

Codecov Report

Attention: Patch coverage is 80.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 86.33%. Comparing base (ea86e2b) to head (1c99b02).
Report is 62 commits behind head on master.

Files	Patch %	Lines
aiobotocore/signers.py	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1115      +/-   ##
==========================================
- Coverage   86.34%   86.33%   -0.01%     
==========================================
  Files          62       62              
  Lines        5910     5913       +3     
==========================================
+ Hits         5103     5105       +2     
- Misses        807      808       +1     

Flag	Coverage Δ
unittests	86.33% <80.00%> (-0.01%)	⬇️

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[jakob-keller]

@thehesiod: Thanks for the quick merge and release!

[tgpfeiffer]

Thank you for the upgrade!