[AIRFLOW-5782] Migrate AWS Lambda to /providers/amazon/aws [AIP-21]

[shcherbin]

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Description

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This PR migrates AWS lambda hook to /providers/aws/hooks

Tests

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Documentation

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[codecov-io]

Codecov Report

Merging #6518 into master will decrease coverage by 0.3%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #6518      +/-   ##
==========================================
- Coverage   84.08%   83.77%   -0.31%     
==========================================
  Files         635      636       +1     
  Lines       36849    36853       +4     
==========================================
- Hits        30983    30873     -110     
- Misses       5866     5980     +114

Impacted Files	Coverage Δ
airflow/providers/amazon/aws/hooks/s3.py	95.74% <ø> (ø)
airflow/providers/amazon/aws/hooks/sqs.py	100% <ø> (ø)
airflow/providers/amazon/aws/hooks/athena.py	67.18% <ø> (ø)
...flow/providers/amazon/aws/hooks/lambda_function.py	100% <100%> (ø)
airflow/providers/amazon/aws/sensors/sqs.py	100% <100%> (ø)
...flow/contrib/operators/aws_sqs_publish_operator.py	100% <100%> (ø)	⬆️
airflow/providers/amazon/aws/operators/sqs.py	100% <100%> (ø)
airflow/contrib/sensors/aws_sqs_sensor.py	100% <100%> (ø)	⬆️
airflow/contrib/hooks/aws_lambda_hook.py	100% <100%> (ø)	⬆️
airflow/hooks/S3_hook.py	100% <100%> (ø)	⬆️
... and 14 more

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[ratb3rt]

FWIW, there's a possible change in structure coming: providers.amazon.aws instead of providers.aws...
I've done the base work for moving into providers/amazon/aws already in #6502 - doc paths, etc. If that gets merged first (after the vote on AIP-21 v2 is closed), then your update would be easier...

[shcherbin]

@ratb3rt, thank you for the heads up. I've updated the code to use the new package path.

[shcherbin]

Hi @potiuk, I've noticed you were reviewing other related PR, would you mind having a look at this one, please?
There has been a lot of duplicated effort around a simple package migration. The sooner we merge this the better.

[potiuk]

Thanks! Merged.

[shcherbin]

You are very welcome!