Add RibbonBar.autoHideRibbon method (#92)

* Close auto hide mode when clicked the collapse button

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Update ribbonbar.py

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

pyqtribbon/ribbonbar.py

@@ -99,6 +99,13 @@ def __init__(self, *args, **kwargs):
         self._titleWidget.tabBar().currentChanged.connect(self.showCategoryByIndex)  # type: ignore
         self.setRibbonStyle(RibbonStyle.Default)
 
+    def autoHideRibbon(self) -> bool:
+        """Return whether the ribbon bar is automatically hidden when the mouse is pressed outside the ribbon bar.
+
+        :return: Whether the ribbon bar is automatically hidden.
+        """
+        return self._autoHideRibbon
+
     def setAutoHideRibbon(self, autoHide: bool):
         """Set whether the ribbon bar is automatically hidden when the mouse is pressed outside the ribbon bar.