✨AWS-library: Added interface to AWS SSM

[sanderegg]

What do these changes do?

This PR introduces in the AWS-library the interfacing with AWS System Manager service (SSM)

Excerpt of AWS SSM:
AWS Systems Manager allows you to safely automate common and repetitive IT operations and management tasks across multiple accounts and AWS Regions.

This PR is a pre-requisite of #5923

In a nutshell, the SSM service allows to run arbitrary commands on EC2 machines when they are running. And this is needed in order to prepare EBS-based buffer machines.

Related issue/s

How to test

Dev-ops checklist

• No ENV changes or I properly updated ENV (read the instruction)

[codecov]

Codecov Report

Attention: Patch coverage is 94.64286% with 9 lines in your changes missing coverage. Please review.

Project coverage is 87.9%. Comparing base (cafbf96) to head (1279375).
Report is 325 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##           master   #6032      +/-   ##
=========================================
+ Coverage    84.5%   87.9%    +3.3%     
=========================================
  Files          10    1432    +1422     
  Lines         214   58735   +58521     
  Branches       25    1403    +1378     
=========================================
+ Hits          181   51636   +51455     
- Misses         23    6806    +6783     
- Partials       10     293     +283     

Flag	Coverage Δ
integrationtests	64.7% <ø> (?)
unittests	85.9% <94.6%> (+1.3%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
packages/aws-library/src/aws_library/ec2/client.py	100.0% <100.0%> (ø)
packages/aws-library/src/aws_library/ec2/models.py	88.7% <ø> (ø)
...ckages/aws-library/src/aws_library/ssm/__init__.py	100.0% <100.0%> (ø)
...ackages/aws-library/src/aws_library/ssm/_client.py	100.0% <100.0%> (ø)
...ackages/aws-library/src/aws_library/ssm/_errors.py	100.0% <100.0%> (ø)
...es/service-library/src/servicelib/logging_utils.py	72.6% <100.0%> (ø)
...kages/settings-library/src/settings_library/ssm.py	100.0% <100.0%> (ø)
.../aws-library/src/aws_library/ssm/_error_handler.py	77.5% <77.5%> (ø)

... and 1390 files with indirect coverage changes

[mrnicegyu11]

Beautiful code, impressive error handling. Thanks a lot! Only one comment from my side 💪

[pcrespov]

nice work! THX

[matusdrobuliak66]

cool, thanks!