Remove Node.js 14 support

[MohitMaheshwari1711]

Which issue, if any, is this issue related to?

Closes #6740

Is there anything in the PR that needs further explanation?

The issue mentioned that the minimum version required should be v16.0.0; as per my observations, some packages, such as jest and others need version ^16.14.0. I have attached a screenshot for further clarification. Hence I have added support for v16.14.0 rather than 16.0.0.

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[ybiquitous]

@MohitMaheshwari1711 Thanks for the pull request. But I think this PR is too much for the reason I commented on #6740 (comment).

[Mouvedia]

I think if it has to be changed it should based on the LTS.
i.e. >=16.13.0"

[ybiquitous]

[suggest] I agree with @Mouvedia's suggestion on #6785 (comment). Node.js 16.13.0 is the first version of Node.js 16.x LTS series.

See https://nodejs.org/en/blog/release/v16.13.0

Suggested change

	"node": "^16.14.0 || >=18.0.0"
	"node": "^16.13.0 || >=18.0.0"

The ls-engines check passes:

$ npx ls-engines@latest
`node_modules` found; loading tree from disk...
┌────────┬─────────────────────────────────────────────────────────────────┐
│ engine │ Currently available latest release of each valid major version: │
├────────┼─────────────────────────────────────────────────────────────────┤
│ node   │ v20.3.1, v19.9.0, v18.16.1, v17.9.1, v16.20.1                   │
└────────┴─────────────────────────────────────────────────────────────────┘

┌───────────────────────────────────┬───────────────────────────┐
│ package engines:                  │ dependency graph engines: │
├───────────────────────────────────┼───────────────────────────┤
│ "engines": {                      │ "engines": {              │
│   "node": "^16.13.0 || >= 18.0.0" │   "node": ">= 16.13"      │
│ }                                 │ }                         │
└───────────────────────────────────┴───────────────────────────┘


Your “engines” field allows fewer node versions than your dependency graph does.
...

Surely, dev dependencies require higher Node.js versions. But we can ignore them because they're just for dev, and we should respect engines.node to support more users.

$ npx ls-engines@latest --dev
...
Your “engines” field does not exactly match your dependency graph‘s requirements!
...

[ybiquitous]

I've changed the base branch from main to v16. See #6930.

[ybiquitous]

@MohitMaheshwari1711 Could you consider addressing my review, please?

[ybiquitous]

See #7020