[Fetch Migration] Include index aliases in metadata migration

[kartg]

Description

Small update to the metadata migration step of Fetch Migration to include index aliases during metadata migration. This PR also includes unit test updates, as well as a minor fix to the Data Prepper pipeline template file used by the CDK to remove an invalid flag (Data Prepper does not require explicit configuration to toggle TLS).

• Category: Enhancement + Bug fix

Testing

$ python -m coverage report --omit "*/tests/*"
Name                           Stmts   Miss  Cover
--------------------------------------------------
endpoint_info.py                  24      0   100%
endpoint_utils.py                107      1    99%
fetch_orchestrator.py             70      0   100%
fetch_orchestrator_params.py      22      0   100%
index_diff.py                     20      0   100%
index_doc_count.py                 5      0   100%
index_operations.py               53      0   100%
metadata_migration.py             59      0   100%
metadata_migration_params.py       7      0   100%
metadata_migration_result.py       5      0   100%
migration_monitor.py              89      0   100%
migration_monitor_params.py        6      0   100%
progress_metrics.py               91      0   100%
utils.py                          13      0   100%
--------------------------------------------------
TOTAL                            571      1    99%

Check List

• New functionality includes testing
  • All tests pass, including unit test, integration test and doctest
• New functionality has been documented
• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (bce4aed) 62.87% compared to head (829cb8f) 63.16%.
Report is 41 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #429      +/-   ##
============================================
+ Coverage     62.87%   63.16%   +0.29%     
- Complexity      865      873       +8     
============================================
  Files            99      100       +1     
  Lines          4339     4341       +2     
  Branches        404      410       +6     
============================================
+ Hits           2728     2742      +14     
+ Misses         1341     1328      -13     
- Partials        270      271       +1     

Flag	Coverage Δ
unittests	63.16% <ø> (+0.29%)	⬆️

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

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[sumobrian]

lgtm