Add OTP request timeout GraphQL instrumentation

[vpaturet]

Summary

The OTP request timeout feature provides a way to periodically check if the thread running an API request has been interrupted at a higher level (web server level).
This allows for cancelling long-running queries.
However this assumes that the running query will touch the code that checks for the interruption status.
While this works well for trip planning queries, other categories of query may never touch the check points.

This PR adds an extra level of protection by checking periodically the OTP request timeout status at the GraphQL level, while data is being fetched.

Issue

No.

Unit tests

No.

Documentation

No.

[codecov]

Codecov Report

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

Project coverage is 68.48%. Comparing base (715be85) to head (ec4baa3).

Files	Patch %	Lines
...s/transmodel/OTPRequestTimeoutInstrumentation.java	0.00%	8 Missing ⚠️
...entripplanner/apis/transmodel/TransmodelGraph.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             dev-2.x    #5881      +/-   ##
=============================================
- Coverage      68.49%   68.48%   -0.02%     
  Complexity     16703    16703              
=============================================
  Files           1915     1916       +1     
  Lines          72652    72660       +8     
  Branches        7447     7448       +1     
=============================================
- Hits           49762    49760       -2     
- Misses         20325    20335      +10     
  Partials        2565     2565              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[leonardehrenfried]

If it's good enough for Entur, it's good enough for me.