(Chore): Attach test-collection-short-id to staging uploads

[dfrankland]

Summary

• Add --test-collection-short-id 2tYJWMu7 to the PR-CI staging upload in .github/workflows/pull_request.yml so analytics-cli's own JUnit results land in the right staging collection.
• Add --test-collection-short-id z2dzjLHm to the three smoke-test staging uploads in .github/actions/perform_smoke_test/action.yaml (Swift xcresult, baseline junit, and variant) so smoke-test runs land in their own collection.
• Skip the flag on uploads that pass --repo-url (the flake-farm-staging-fork-prs public-repo-id upload and the GitLab smoke test), since those represent data from other repos.

Test plan

• Verify CI PR run uploads to staging show up under the 2tYJWMu7 test collection.
• Verify main-branch smoke-test runs show up under the z2dzjLHm test collection.
• Confirm public-repo-id and GitLab smoke-test uploads remain unchanged in staging.

🤖 Generated with Claude Code

[trunk-io]

😎 Merged directly without going through the merge queue, as the queue was empty and the PR was up to date with the target branch - details.

[trunk-staging-io]

     

Failed Test	Failure Summary	Logs
variant_quarantine_test should be quarantined when run with variant	A test expected the sum of 2 + 2 to be 5, but it was actually 4, indicating a failing assertion.	Logs ↗︎

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.39%. Comparing base (f584ee0) to head (da4c14c).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1114      +/-   ##
==========================================
+ Coverage   82.12%   82.39%   +0.26%     
==========================================
  Files          69       69              
  Lines       15243    15243              
==========================================
+ Hits        12519    12559      +40     
+ Misses       2724     2684      -40     

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[trunk-io]

     

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