`resolveJsonModule` is not defaulted to `true` when `module` is `nodenext`

[abrahamguo]

Steps to reproduce

TS:

import packageJson from './package.json' with { type: 'json' };

Result:

"module":	tsc 5.9.3	tsgo 7.0.0-dev.20260203.1
"node20"	✅	✅
"nodenext"	✅	Consider using '--resolveJsonModule' to import module with '.json' extension.

[abrahamguo]

This feature was introduced into TS in typescript#61805, and ported to tsgo in #1797, but it looks like this specific feature was missed.

[jakebailey]

This is a simple porting bug, I wrote:

	switch options.GetEmitModuleKind() {
	// TODO in 6.0: add Node16/Node18
	case ModuleKindNode20, ModuleKindESNext:
		return true
	}

But ESNext was meant to be NodeNext.