Drop ElasticSearch features from worker (APM and logging)

[nellh]

This consolidates validation error logging with container logs and drops all dependencies on ElasticSearch from the worker.

[codecov]

Codecov Report

Attention: Patch coverage is 83.33333% with 2 lines in your changes missing coverage. Please review.

Project coverage is 42.66%. Comparing base (6ae55a9) to head (55d7451).

Files	Patch %	Lines
...ervices/datalad/datalad_service/tasks/validator.py	83.33%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3115      +/-   ##
==========================================
+ Coverage   42.64%   42.66%   +0.01%     
==========================================
  Files         594      593       -1     
  Lines       37874    37856      -18     
  Branches     1098     1098              
==========================================
- Hits        16151    16150       -1     
+ Misses      21516    21499      -17     
  Partials      207      207              

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