Deprecate old alert translations in the GTFS API and add language param to a few alert fields

[optionsome]

Summary

This deprecates old alert translations fields from GTFS API and add language param to normal fields.

Issue

Minor GraphQL API update, no issue

Unit tests

Updated tests

Documentation

Not needed

Changelog

From title

[codecov]

Codecov Report

Attention: Patch coverage is 25.00000% with 21 lines in your changes missing coverage. Please review.

Project coverage is 69.92%. Comparing base (c15ee47) to head (36381e8).
Report is 189 commits behind head on dev-2.x.

Files with missing lines	Patch %	Lines
...ntripplanner/apis/gtfs/generated/GraphQLTypes.java	0.00%	21 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             dev-2.x    #6216      +/-   ##
=============================================
- Coverage      69.95%   69.92%   -0.04%     
+ Complexity     17757    17748       -9     
=============================================
  Files           1999     1999              
  Lines          75500    75517      +17     
  Branches        7728     7733       +5     
=============================================
- Hits           52813    52802      -11     
- Misses         20012    20040      +28     
  Partials        2675     2675              

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