Add more information to Release Notes for 3.22 EP3

[sabags]

Previous Release note was missing additional information for a release note.

Adding those information with this PR.

Product Version(s):
Calico Enterprise 3.22 EP3

Issue:
N/A

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:

Merge checklist:

• Deploy preview inspected wherever changes were made
• Build completed successfully
• Test have passed

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[Copilot]

Pull request overview

This PR enhances the release notes for Calico Enterprise 3.22 EP3 by expanding the existing known issue about Felix panics when WAF/L7 features are enabled with eBPF dataplane. The update adds important context about the impact on cluster performance and provides a workaround for users.

Changes:

• Expanded the Felix panic known issue to include impact details and workaround guidance