Fix httproute counts

[ciarams87]

Proposed changes

Problem: Our telemetry uses the total graph Route count to report the HTTPRoutes counts. However, after GRPCRoute support was added, this count now includes both GRPC and HTTP routes.

Solution: Add a new function to check the route type of a route and only count it if it is HTTP. Added a GRPCRoute to the unit-tests to cover the case where a non-HTTP route is reported as part of the graph to validate it is not reported in the count.

Testing: Unit testing

Please focus on (optional): Note that GRPCRoute counts support will be added in a later PR.

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

Release notes

If this PR introduces a change that affects users and needs to be mentioned in the release notes,
please add a brief note that summarizes the change.

NONE

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.72%. Comparing base (8505f8b) to head (5394b0b).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1922      +/-   ##
==========================================
+ Coverage   86.71%   86.72%   +0.01%     
==========================================
  Files          88       88              
  Lines        5967     5972       +5     
  Branches       50       50              
==========================================
+ Hits         5174     5179       +5     
  Misses        741      741              
  Partials       52       52              

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