PyQt6如何动态调整QGroupBox的大小以适应内容？

import sys
from PyQt6.QtWidgets import QApplication, QMainWindow, QGroupBox, QVBoxLayout, QLabel

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()

        self.setWindowTitle("Dynamic QGroupBox Size Example")
        self.setGeometry(100, 100, 400, 300)

        self.groupBox = QGroupBox("Group Box")
        self.groupBoxLayout = QVBoxLayout()
        self.groupBox.setLayout(self.groupBoxLayout)

        self.label = QLabel("Content")
        self.groupBoxLayout.addWidget(self.label)

        self.setCentralWidget(self.groupBox)

        # 设置最小和最大尺寸
        self.groupBox.setMinimumSize(200, 100)
        self.groupBox.setMaximumSize(400, 300)

        # 动态调整大小
        self.label.setText("Updated Content")

if __name__ == '__main__':
    app = QApplication(sys.argv)
    mainWindow = MainWindow()
    mainWindow.show()
    sys.exit(app.exec())