Updates for fastify v5

[nrayburn-tech]

Drop node <= 16 from workflows
Add node 21 to benchmark-pr
Add node 21 to ci-package-manager for yarn

Fixes #106, #92.

Checklist

• run npm run test and npm run benchmark
• tests and/or benchmarks are included
• documentation is changed or added
• commit message and code follows the Developer's Certification of Origin
  and the Code of conduct

[jsumners]

Looks good to me.

[jsumners]

The v4 tag has been created.

[mcollina]

Let's hope this does not get auto-updated across the entire fleet, otherwise it would be a nightmare to revert.

[jsumners]

It shouldn't. But what in the actual eff Dependabot? fastify/releasify#283

@Fdawgs I believe you have setup the majority of the Dependabot stuff. Do you know why it would automatically update the major versions of workflows?

[Fdawgs]

https://github.com/fastify/github-action-merge-dependabot working as intended.

[mcollina]

@Fdawgs would this land automatically then?

[Fdawgs]

@Fdawgs would this land automatically then?

Unfortunately, yes. Can see it making its way through all the reps now. 😵‍💫

[jsumners]

We really should not be updating at least our own workflows's major version automatically. The whole point of the versioning, particularly in this repo, is to indicate breaking changes in the workflow.

[jsumners]

How do we stop the linked tool from updating all of our repos automatically for this?

[jsumners]

@nrayburn-tech I have removed the v4 tag for right now. To continue your work, use the git SHA. I will restore the v4 tag once we have fixed the above discussed problem.