Update dependency fastify to v4.28.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
fastify (source)	4.28.0 -> 4.28.1

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Release Notes

fastify/fastify (fastify)

v4.28.1

Compare Source

What's Changed

• [Backport 4.x] fix: server.listen listener is not cleanup properly by @​github-actions in https://github.com/fastify/fastify/pull/5523
• [Backport 4.x] test: fix test finished earlier than expected by @​github-actions in https://github.com/fastify/fastify/pull/5541
• fix(v4): update .npmignore by @​Eomm in https://github.com/fastify/fastify/pull/5538

Full Changelog: fastify/fastify@v4.28.0...v4.28.1

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