feat: add stats for bad events in fb_custom_audience

[ujjwal-ab]

Description of the change

Add stats for bad events in fb_custom_audience

Type of change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Related issues

Fix #1

Checklists

Development

• Lint rules pass locally
• The code changed/added as part of this pull request has been covered with tests
• All tests related to the changed code pass in development

Code review

• This pull request has a descriptive title and information useful to a reviewer. There may be a screenshot or screencast attached
• "Ready for review" label attached to the PR and reviewers mentioned in a comment
• Changes have been reviewed by at least one other engineer
• Issue from task tracker has a link to this pull request

[codecov]

Codecov Report

Patch coverage: 83.33% and no project coverage change.

Comparison is base (075f819) 88.55% compared to head (c18bcd9) 88.56%.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #2192   +/-   ##
========================================
  Coverage    88.55%   88.56%           
========================================
  Files          509      509           
  Lines        25835    25848   +13     
  Branches      6376     6377    +1     
========================================
+ Hits         22879    22892   +13     
  Misses        2641     2641           
  Partials       315      315           

Impacted Files	Coverage Δ
src/util/prometheus.js	7.07% <0.00%> (ø)
...rc/v0/destinations/fb_custom_audience/transform.js	94.23% <ø> (ø)
src/v0/destinations/fb_custom_audience/util.js	93.27% <100.00%> (+0.82%)	⬆️

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[Gauravudia]

@ujjwal-ab You need to add the stats in the prometheus.js file as well.

[koladilip]

we don't have label names are consistent

[koladilip]

destinationId destination_id destination we are using different labels, something we need to standardise

mistakenly approved

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

88.7% Coverage
0.0% Duplication