Update Hackathon banner text

[ctauchen]

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[Copilot]

Pull request overview

Updates the Docusaurus announcement bar copy to reflect an extended Calico hackathon deadline.

Changes:

• Update the announcement bar message and emoji to announce the new April 30, 2026 deadline.
• Adjust the hackathon link text/markup in the banner.

[Copilot]

Changing the announcementBar text without updating the id means users who previously dismissed the banner (stored by that id) likely won’t see the extended-deadline message after deploy. If the goal is to re-notify users, bump the announcementBar.id to a new value so the updated banner is shown again.

Suggested change

	id: "calico_hackathon_deadline",
	id: 'calico_hackathon_deadline_extended_2026_04_30',

[Copilot]

The URL’s tracking parameter utm_medium changed from Docs_site to docs_site in this edit. If your analytics tooling treats parameter values as case-sensitive, this will split campaign attribution; consider keeping the previous value unless the change is intentional.

Suggested change

	content: '🚀 Deadline Extended! (Ends April 30, 2026!) Finalize your GitHub repo and demo video to enter the <a href="https://www.tigera.io/lp/project-calico-hackathon?utm_source=website&utm_medium=docs_site&utm_campaign=Hackathon2026">Calico 3.30+ Hackathon.</a>',
	content: '🚀 Deadline Extended! (Ends April 30, 2026!) Finalize your GitHub repo and demo video to enter the <a href="https://www.tigera.io/lp/project-calico-hackathon?utm_source=website&utm_medium=Docs_site&utm_campaign=Hackathon2026">Calico 3.30+ Hackathon.</a>',