Add release note v3.22.5 for a fix where felix making unnecessary calls to nft

[mazdakn]

Product Version(s):

Enterprise v3.22.5 patch release

Issue:

https://github.com/tigera/calico-private/pull/11778

Link to docs preview:

SME review:

• An SME has approved this change.

DOCS review:

• A member of the docs team has approved this change.

Additional information:

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• Deploy preview inspected wherever changes were made
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• Test have passed

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[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

This PR updates the Calico Enterprise 3.22-2 release notes to include an additional bug fix for Felix in iptables mode.

Changes:

• Added a release note entry about Felix making unnecessary nft calls in iptables mode.