Remove librato, use latest gocommon

[rowanseymour]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 9 lines in your changes missing coverage. Please review.

Project coverage is 53.44%. Comparing base (2a623d8) to head (78d7a98).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
cmd/rp-indexer/main.go	0.00%	9 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #89      +/-   ##
==========================================
+ Coverage   53.13%   53.44%   +0.31%     
==========================================
  Files           6        6              
  Lines         606      595      -11     
==========================================
- Hits          322      318       -4     
+ Misses        259      252       -7     
  Partials       25       25              

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