fix QgsGeometry API doc for 3.x for get/set methods

Author: 3nids

python/core/auto_generated/geometry/qgsgeometry.sip.in

@@ -37,7 +37,7 @@ for geometry objects. QgsGeometry is implicitly shared, so making copies of geom
 container class can also be stored inside a QVariant object.
 
 The actual geometry representation is stored as a QgsAbstractGeometry within the container, and
-can be accessed via the geometry() method or set using the setGeometry() method.
+can be accessed via the get() method or set using the set() method.
 %End
 
 %TypeHeaderCode

src/core/geometry/qgsgeometry.h

@@ -98,7 +98,7 @@ struct QgsGeometryPrivate;
  * container class can also be stored inside a QVariant object.
  *
  * The actual geometry representation is stored as a QgsAbstractGeometry within the container, and
- * can be accessed via the geometry() method or set using the setGeometry() method.
+ * can be accessed via the get() method or set using the set() method.
  */
 
 class CORE_EXPORT QgsGeometry