Brian Vaughn关于Stateless Component: React.forwardRef make defaultProps invalid问题的评论
传递给forwardRef的函数不是React组件。（例如，React组件不接受第二个ref参数。）它只是一个“呈现”（返回）React元素的函数。不支持defaultProps。我们有测试证实这是预期的行为。
React还在控制台中记录以下错误（可以在Code Sandbox repro中看到）：
警告：forwardRef呈现函数不支持propTypes或〉defaultProps。你是否意外传递了React组件？
这就是为什么在将function that "renders"传递到forwordRef之前不能附加defaultProps的原因。
在react的类型定义中也提到了：

// the input of ForwardedRef
interface ForwardRefRenderFunction<T, P = {}> {
    (props: P, ref: ForwardedRef<T>): ReactElement | null;
    displayName?: string | undefined;
    // explicit rejected with `never` required due to
    // https://github.com/microsoft/TypeScript/issues/36826
    /**
     * defaultProps are not supported on render functions
     */
    defaultProps?: never | undefined;
    /**
     * propTypes are not supported on render functions
     */
    propTypes?: never | undefined;
}

在你的例子中，只需颠倒声明的顺序：

import "./styles.css";
import { forwardRef } from "react";
import PropTypes from "prop-types";

type Props = {
  children: JSX.Element | JSX.Element[];
  // NOTE: text is optional since he has default value.
  text?: string;
  text1?: string;
};

const ComponentA = forwardRef<HTMLAllCollection, Props>((prop: Props) => {
  return (
    <div>
      Hey
      {prop.children}
      {prop.text}
      {prop.text1}
    </div>
  );
});

ComponentA.prototype = {
  children: PropTypes.element.isRequired,
  text: PropTypes.string,
  text1: PropTypes.string
};

ComponentA.defaultProps = {
  text: "done"
};

export default function App() {
  return (
    <ComponentA>
      <button>Button I am</button>
    </ComponentA>
  );
}

Sandbox Code

2023年更新

Default Props are deprecated。对于功能性组件，最好在解构props时指定默认值。此外，在使用TypeScript时，您真的不需要PropTypes。TypeScript已经为您提供了严格的类型化。

import "./styles.css";
import { forwardRef } from "react";

type Props = {
  children: JSX.Element | JSX.Element[];
  // NOTE: text is optional since he has default value.
  text?: string;
  text1?: string;
};

const ComponentA = forwardRef<HTMLAllCollection, Props>(
  ({ children, text = "done", text1 }: Props) => {
    return (
      <div>
        Hey
        {children}
        {text}
        {text1}
      </div>
    );
  }
);

export default function App() {
  return (
    <ComponentA>
      <button>Button I am</button>
    </ComponentA>
  );
}

Code Sandbox Link