chore(deps): update go-junit-report from tag to SHA

[devin-ai-integration]

Summary

Updates the go-junit-report dependency reference in the unit tests GitHub Action from tag v0.9.1 to the specific commit SHA cc1f095d5cc5eca2844f5c5ea7bb37f6b9bf6cac. This change improves reproducibility and security by pinning to an exact commit rather than a mutable tag.

Changes

• .github/actions/unit-tests/action.yml: Updated go run github.com/jstemmer/go-junit-report@v0.9.1 to go run github.com/jstemmer/go-junit-report@cc1f095d5cc5eca2844f5c5ea7bb37f6b9bf6cac

This change only affects how test results are processed into JUnit XML format after tests complete successfully. It does not modify any test code or application logic.

Testing

• Lint checks passed locally where applicable
• This change will be validated through CI - test results should continue to be properly processed and uploaded as artifacts

Human Review Checklist

• Verify the commit SHA cc1f095d5cc5eca2844f5c5ea7bb37f6b9bf6cac is correct (can validate with: git ls-remote https://github.com/jstemmer/go-junit-report.git cc1f095d5cc5eca2844f5c5ea7bb37f6b9bf6cac)
• Confirm CI passes and test results are properly processed and uploaded as artifacts
• Verify this aligns with SDK-1496 (updating go-junit-report across all LaunchDarkly Go repositories)

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Link to Devin run: https://app.devin.ai/sessions/d9bc1ac5704042e498ac4d51de7c44fa
Requested by: @keelerm84

Note: This PR is part of a coordinated update across 13 LaunchDarkly Go repositories to replace tag-based references with specific commit SHAs.

[devin-ai-integration]

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