fix: incorrect usage of histogram as counter

[koladilip]

Description of the change

hv_request_size is histogram but used as couter.
Fixes this error: Counter metric hv_request_size failed with error TypeError: metric.inc is not a function. Value: 2223

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

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 and project coverage have no change.

Comparison is base (72fb4a2) 87.15% compared to head (71c8c3a) 87.15%.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #2335   +/-   ##
========================================
  Coverage    87.15%   87.15%           
========================================
  Files          490      490           
  Lines        25442    25442           
  Branches      6301     6301           
========================================
  Hits         22174    22174           
  Misses        2900     2900           
  Partials       368      368           

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[sonarcloud]

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