Convert all remaining metrics to cloudwatch

[rowanseymour]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 12.82051% with 102 lines in your changes missing coverage. Please review.

Project coverage is 62.12%. Comparing base (8403f1b) to head (d6bc88d).

Files with missing lines	Patch %	Lines
core/tasks/metrics/cron.go	0.00%	102 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #383      +/-   ##
==========================================
- Coverage   62.29%   62.12%   -0.18%     
==========================================
  Files         195      195              
  Lines       13829    13867      +38     
==========================================
  Hits         8615     8615              
- Misses       4302     4340      +38     
  Partials      912      912              

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