fix: path to test files

Author: thetutlage

bin/test.ts

@@ -18,7 +18,7 @@ import { processCLIArgs, configure, run } from '@japa/runner'
 */
 processCLIArgs(process.argv.slice(2))
 configure({
-  files: ['test/**/*.spec.ts'],
+  files: ['tests/**/*.spec.ts'],
   plugins: [assert(), expectTypeOf(), fileSystem()],
 })