[SDTEST-301] add source location info to test suites

[anmarchenko]

What does this PR do?
Adds test.source.file, test.source.start, test.codeowners tags to test suites reported to Datadog

Motivation
We want to show source locations for test suites and attach codeowners to test suites

How to test the change?
Unit tests are provided

RSpec (tested using rubocop):

Minitest (tested using feedbin):

Cucumber (tested using middleman):

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.95%. Comparing base (f3d84e6) to head (c1fdf81).
Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #239   +/-   ##
=======================================
  Coverage   98.95%   98.95%           
=======================================
  Files         273      273           
  Lines       13381    13404   +23     
  Branches      601      606    +5     
=======================================
+ Hits        13241    13264   +23     
  Misses        140      140           

Flag	Coverage Δ
	98.95% <100.00%> (+<0.01%)	⬆️

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