fix(runtime): add autocomplete to textarea (#4465)

this commit adds 'autocomplete` and 'autoComplete' to the typings for a
`<textarea>`

Author: rwaskiewicz

src/declarations/stencil-public-runtime.ts

@@ -1257,6 +1257,8 @@ export namespace JSXBase {
   }
 
   export interface TextareaHTMLAttributes<T> extends HTMLAttributes<T> {
+    autoComplete?: string;
+    autocomplete?: string;
     autoFocus?: boolean;
     autofocus?: boolean | string;
     cols?: number;