[PIE-2044] Output a summary of TA links in rspec log

[meghan-kradolfer]

Description

Output test analytics links within the summary of an rspec run. Using the rspec dump_failures method we can output a list of all the failed examples within a run.

Links will only output links if:

• more than 1 test has failed
• a test analytics token has been provided
• a suite url has been received from the upload

The test link url is created by getting the suite_url from the from the metadata endpoint within BK, the suite_url is currently only populated when the feature flag analytics_job_log_test_links is turned on, when the flag is off the dump_failures will return empty and not output will appear. The suite_url is then appended with the scope_name_digest as the test identifier

https://github.com/buildkite/test-collector-ruby/assets/25017977/b757cf16-daf2-48c7-9a30-f4dd5c91fe18

Context

PIE-2044

Verification

Integration testing using buildkite/buildkite

Renders failures correctly:

• [x] Feature flag is on (metadata success, suite_url present)

Does not render correctly:

• [x] Feature flag is off (metadata success, suite_url nil)

Fails gracefully:

• [x] Feature flag is on and metadata endpoint throws an error or returns a non 200 code
• [x] Feature flag is off and metadata endpoint throws an error or returns a non 200 code

[meghan-kradolfer]

@niceking Those updates have been made and new specs added, would you be able to have another look please?

[meghan-kradolfer]

@niceking updates to those tests have been made. I also updated the description and added some checks for the integration testing I've done