fix: don't fail on running vitest dev (closes #1971)

packages/vitest/src/node/cli.ts

@@ -55,19 +55,19 @@ cli
 
 cli
   .command('watch [...filters]')
-  .action(start)
+  .action(watch)
 
 cli
   .command('dev [...filters]')
-  .action(start)
+  .action(watch)
 
 cli
   .command('bench [...filters]')
   .action(benchmark)
 
 cli
   .command('[...filters]')
-  .action((filter, options) => start('test', filter, options))
+  .action(watch)
 
 cli.parse()
 
@@ -77,6 +77,11 @@ async function runRelated(relatedFiles: string[] | string, argv: CliOptions) {
   await start('test', [], argv)
 }
 
+async function watch(cliFilters: string[], options: CliOptions) {
+  options.watch = true
+  await start('test', cliFilters, options)
+}
+
 async function run(cliFilters: string[], options: CliOptions) {
   options.run = true
   await start('test', cliFilters, options)