touch: Add closeAfter option (#29459)

types/touch/index.d.ts

@@ -18,6 +18,7 @@ declare namespace touch {
         mtime?: boolean | Date;
         ref?: string;
         nocreate?: boolean;
+        closeAfter?: boolean;
     }
 
     function sync(filename: string, options?: Options): void;

types/touch/touch-tests.ts

@@ -25,6 +25,8 @@ opts.ref = strVal;
 
 opts.nocreate = boolVal;
 
+opts.closeAfter = boolVal;
+
 let str: string;
 // touch API tests
 touch(strVal, (e) => console.log(e));