tests: runtime: Mark another port 4318 raced test case

[cosmo0920]

cumulative_to_delta case also uses port 4318.

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Testing
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Fluent Bit is licensed under Apache 2.0, by submitting this pull request I understand that this code will be released under the terms of that license.

Summary by CodeRabbit

• Tests
  • Updated test infrastructure to extend runtime test coverage for processor components.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 2c108fa7-e99e-440f-a421-3b3f05e823a9

📥 Commits

Reviewing files that changed from the base of the PR and between 32a3cbb and e1768f6.

📒 Files selected for processing (1)

• tests/runtime/CMakeLists.txt

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📝 Walkthrough

Walkthrough

This PR updates the CMake test configuration to add the flb-rt-processor_cumulative_to_delta runtime test executable to the serialized test set locked to port 4318, extending resource locking coverage for tests requiring exclusive port access.

Changes

Cohort / File(s)	Summary
CMake Test Configuration tests/runtime/CMakeLists.txt	Added flb-rt-processor_cumulative_to_delta test executable to the runtime-port-4318 resource-locked test group to ensure serialized execution on port 4318.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• tests: serialize conflictive runtime tests (perf improvement) #11546: Extends the same CTest RESOURCE_LOCK serialization in the port-4318 locked test group by adding the cumulative-to-delta processor test.

Suggested reviewers

• edsiper

Poem

🐰 A test joins the queue, locked tight with care,
Port 4318, no conflicts to share,
One line departed, two lines appear,
Cumulative delta, serialized here! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: marking another test case that races on port 4318, which directly aligns with the pull request's objective of addressing port 4318 race conditions in runtime tests.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch cosmo0920-add-port-4318-raced-test-case

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