Add support for TS config files (#16828)

* feat: prettier.config.ts

* revert

* feat: add flag

* fix: remove experimental warning

* Revert changes

* Add tests

* Update docs

* Only test on Node.js v22

* Add changelog

* Update docs

* Update examples

* Fix changelog

* Fix command

* Name `loadJs` back

* Fix

---------

Co-authored-by: fisker <lionkay@gmail.com>

tests/integration/run-cli.js

@@ -38,6 +38,8 @@ function runCliWorker(dir, args, options) {
     write: [],
   };
 
+  const nodeOptions = options?.nodeOptions ?? [];
+
   const worker = new Worker(CLI_WORKER_FILE, {
     argv: args,
     execArgv: [
@@ -45,6 +47,7 @@ function runCliWorker(dir, args, options) {
       ...(SUPPORTS_DISABLE_WARNING_FLAG
         ? ["--disable-warning=ExperimentalWarning"]
         : []),
+      ...nodeOptions,
     ],
     stdout: true,
     stderr: true,