monorepo/Util: deprecate node 16 / remove Node.js fetch primitive

[gabrocheleau]

Resolves #2850

[codecov]

Codecov Report

Merging #2859 (959f728) into master (5f8552f) will decrease coverage by 9.81%.
The diff coverage is n/a.

Additional details and impacted files

Flag	Coverage Δ
client	?
vm	77.28% <ø> (?)

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[gabrocheleau]

To get the CI to pass, someone with the relevant repository permissions would need to update the "required workflows" so that they look for the node18 tests rather than the node16 ones.

[acolytec3]

Can you also update the test in provider.spec.ts to remove the check for global fetch?

[gabrocheleau]

Can you also update the test in provider.spec.ts to remove the check for global fetch?

ah yes good point, done!

[holgerd77]

Thanks for tackling, also for doing this so thoroughly with all the additional clean-ups and findings (resetting the engines property in package.json is a great and important one e.g.)!

LGTM, have adjusted CI and will merge.