Fix create_waiter_with_client()

[jakob-keller]

Description of Change

Fixes a regression in https://github.com/aio-libs/aiobotocore/blame/aec730aa70c23c7276f8061ebd8f9c867904d603/aiobotocore/waiter.py#L66 which was introduced in #963

Assumptions

None

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):
  • 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

All modified and coverable lines are covered by tests ✅

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Additional details and impacted files

@@            Coverage Diff            @@
##             master    #1140   +/-   ##
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  Coverage          ?   86.18%           
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  Files             ?       62           
  Lines             ?     5944           
  Branches          ?        0           
=========================================
  Hits              ?     5123           
  Misses            ?      821           
  Partials          ?        0           

Flag	Coverage Δ
unittests	86.18% <100.00%> (?)

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