feat: add node: specifier rule

[marvinhagemeister]

This PR adds a rule that warns when the node: specifier is missing when trying to import a built-in node module.

Invalid:

import * as path from "path";
import * as fs from "fs";
import * as fsPromises from "fs/promises";

Valid:

import * as path from "node:path";
import * as fs from "node:fs";
import * as fsPromises from "node:fs/promises";

Related denoland/deno#24930

[dsherret]

This looks good. I think though that we should add it to cli/tools/lint/rules in the deno repo instead so that we can keep the node built-in modules in sync with the cli?

[dsherret]

Maybe require-node-prefix or require-node-scheme or something like that?

[marvinhagemeister]

Err... sure, didn't know that it was possible to add lint rules directly to the deno codebase. I'll try porting it.

+1 I like the require-node-prefix naming suggestion

[dsherret]

Another option is making this rule accept a list of built-in node modules that we can provide in the CLI, then we can construct this rule in the CLI's list of rules.