[DOP-7986] Add Kafka.ScramAuth

[dolfinus]

Change Summary

• Added Kafka.ScramAuth class
• Added related tests & documentation
• Added healthcheck for CI containers

Related issue number

Checklist

• Commit message and PR title is comprehensive
• Keep the change as small as possible
• Unit and integration tests for the changes exist
• Tests pass on CI and coverage does not decrease
• Documentation reflects the changes where applicable
• docs/changelog/next_release/<pull request or issue id>.<change type>.rst file added describing change
  (see CONTRIBUTING.rst for details.)
• My PR is ready to review.

[codecov]

Codecov Report

Merging #115 (9e0783f) into develop (7ecc684) will increase coverage by 0.03%.
The diff coverage is 96.00%.

@@             Coverage Diff             @@
##           develop     #115      +/-   ##
===========================================
+ Coverage    93.97%   94.00%   +0.03%     
===========================================
  Files          170      171       +1     
  Lines         7403     7428      +25     
  Branches      1436     1437       +1     
===========================================
+ Hits          6957     6983      +26     
  Misses         323      323              
+ Partials       123      122       -1     

Files Changed	Coverage Δ
...connection/db_connection/kafka/kafka_scram_auth.py	95.65% <95.65%> (ø)
onetl/connection/db_connection/kafka/connection.py	98.91% <100.00%> (+0.01%)	⬆️

... and 1 file with indirect coverage changes

[Neustradamus]

@dolfinus: Nice :)

Linked to:

• State of Play scram-sasl/info#1