feat: add bun package manager

[DevDengChao]

Add bun as a package manager option.

[fasttime]

Hi @DevDengChao, could you please edit the PR description to explain what this change does?

[DevDengChao]

@fasttime Updated.

[fasttime]

I would like to know what the team thinks about this change @eslint/eslint-team.

We already have pnpm and yarn as alternative package managers, and it seems that bun already gained some popularity, so I'd be in favor of this.

[nzakas]

I'm not opposed to adding this, but I'm also not sure just adding bun as a choice here will do it. This is the method that actually uses the package manager:

create-config/lib/init/npm-utils.js

Lines 52 to 63 in bd20976

	function installSyncSaveDev(packages, packageManager = "npm") {
	const packageList = Array.isArray(packages) ? packages : [packages];
	const installCmd = packageManager === "yarn" ? "add" : "install";
	const installProcess = spawn.sync(packageManager, [installCmd, "-D"].concat(packageList), { stdio: "inherit" });
	const error = installProcess.error;
	if (error && error.code === "ENOENT") {
	const pluralS = packageList.length > 1 ? "s" : "";
	log.error(`Could not execute ${packageManager}. Please install the following package${pluralS} with a package manager of your choice: ${packageList.join(", ")}`);
	}
	}

Does bun install -D work just like npm?

[DevDengChao]

Bun is an npm-compatible package manager.

@nzakas Yes, bun install xxx -D works like npm install xxx -D .

[nzakas]

LGTM. Thanks.