Add changelog entry for kube_cache_sync_timeout_seconds change

[sblumenthal]

What does this PR do?

Add changelog entry for change introduced in #31877

Motivation

Describe how you validated your changes

Possible Drawbacks / Trade-offs

Additional Notes

[agent-platform-auto-pr]

[Fast Unit Tests Report]

On pipeline 50807480 (CI Visibility). The following jobs did not run any unit tests:

Jobs:

• tests_deb-arm64-py3
• tests_deb-x64-py3
• tests_flavor_dogstatsd_deb-x64
• tests_flavor_heroku_deb-x64
• tests_flavor_iot_deb-x64
• tests_rpm-arm64-py3
• tests_rpm-x64-py3
• tests_windows-x64

If you modified Go files and expected unit tests to run in these jobs, please double check the job logs. If you think tests should have been executed reach out to #agent-devx-help

[agent-platform-auto-pr]

Package size comparison

Comparison with ancestor 496b97f64d980a5fc0859ab039d4f0c3e7718b9f

Diff per package

package	diff	status	size	ancestor	threshold
datadog-agent-amd64-deb	-1.40MB	✅	1271.25MB	1272.66MB	140.00MB
datadog-iot-agent-amd64-deb	0.00MB	✅	113.20MB	113.20MB	10.00MB
datadog-dogstatsd-amd64-deb	0.00MB	✅	78.32MB	78.32MB	10.00MB
datadog-heroku-agent-amd64-deb	0.00MB	✅	526.44MB	526.44MB	70.00MB
datadog-agent-x86_64-rpm	-1.41MB	✅	1280.49MB	1281.89MB	140.00MB
datadog-agent-x86_64-suse	-1.41MB	✅	1280.49MB	1281.89MB	140.00MB
datadog-iot-agent-x86_64-rpm	0.00MB	✅	113.27MB	113.27MB	10.00MB
datadog-iot-agent-x86_64-suse	0.00MB	✅	113.27MB	113.27MB	10.00MB
datadog-dogstatsd-x86_64-rpm	0.00MB	✅	78.40MB	78.40MB	10.00MB
datadog-dogstatsd-x86_64-suse	0.00MB	✅	78.40MB	78.40MB	10.00MB
datadog-agent-arm64-deb	0.00MB	✅	1005.42MB	1005.42MB	140.00MB
datadog-iot-agent-arm64-deb	0.00MB	✅	108.70MB	108.70MB	10.00MB
datadog-dogstatsd-arm64-deb	0.00MB	✅	55.59MB	55.59MB	10.00MB
datadog-agent-aarch64-rpm	0.00MB	✅	1014.64MB	1014.64MB	140.00MB
datadog-iot-agent-aarch64-rpm	0.00MB	✅	108.77MB	108.77MB	10.00MB

Decision

✅ Passed

[sblumenthal]

/merge

[dd-devflow]

Devflow running: /merge

View all feedbacks in Devflow UI.

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2024-12-11 15:58:26 UTC ℹ️ MergeQueue: pull request added to the queue

The median merge time in main is 25m.

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2024-12-11 16:37:04 UTC ℹ️ MergeQueue: This merge request was merged