[GHA] add a manual trigger for a GHA run

[mmusgrov]

[GHA] I need to run a performance check on CI and we don't have an option to manually trigger one so this PR adds workflow_dispatch trigger so that option to manually trigger a run is enabled in the github UI.

!JDK 17 !JDK 21 !JDK 25

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: 56cb20b0-c4da-448f-bb4f-294990105b2a

📥 Commits

Reviewing files that changed from the base of the PR and between 2c793fc and 1a1d8d8.

📒 Files selected for processing (1)

• .github/workflows/performance.yml

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📝 Walkthrough

Walkthrough

This PR adds a workflow_dispatch trigger to the performance GitHub Actions workflow, enabling manual runs alongside the existing workflow_call trigger. It defines input parameters for JDK version, pull request repo/ref, and environment variables with defaults.

Changes

Workflow Manual Trigger

Layer / File(s)	Summary
Add manual trigger with inputs .github/workflows/performance.yml	Adds workflow_dispatch trigger with inputs jdk_version (choice, default 21), pull_request_repo (default jbosstm/performance), pull_request_ref (default main), and environment_variables (JSON string, default {"COMPARE_STORES":"y"}), preserving existing conditional behavior.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description is missing the template's environment-variable list and the JDK selection details, so it is largely incomplete.	Expand the description to include the required variable sections and the JDK selection guidance from the template.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title matches the main change: adding a manual workflow trigger for the performance GHA run.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[marcosgopen]

LGTM, thanks Mike. I commented on the required field and the optional environmental_variables