chore(host_metrics source): ignore flakey tcp metrics tests

[pront]

Summary

These tests are flakey. It seems like the TCP metrics are working so instead of reverting the whole PR, we can ignore the tests for now and debug/fix at a second phase.

Change Type

• Bug fix
• New feature
• Non-functional (chore, refactoring, docs)
• Performance

Is this a breaking change?

• Yes
• No

How did you test this PR?

Does this PR include user facing changes?

• Yes. Please add a changelog fragment based on our guidelines.
• No. A maintainer will apply the "no-changelog" label to this PR.

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References

[datadog-vectordotdev]

Datadog Report

Branch report: pront/ignore-flakey-tests-host-metrics-tcp
Commit report: 95d0edd
Test service: vector

✅ 0 Failed, 7 Passed, 0 Skipped, 25.46s Total Time

[jszwedko]

Do you have some examples of flakes here?

[pront]

Do you have some examples of flakes here?

Happened once here: https://github.com/vectordotdev/vector/actions/runs/13591407792/job/37998236270

[pront]

Another failure: https://github.com/vectordotdev/vector/actions/runs/13638685074/job/38123419990?pr=22572

Merging this to unblock #22572