fix anchored position rounding issue

Author: FoamyGuy

adafruit_display_text/label.py

@@ -385,7 +385,7 @@ def anchored_position(self):
         if self._anchor_point is None:
             return None
         return (
-            int(self.x + (self._anchor_point[0] * self._boundingbox[2] * self._scale)),
+            int(self.x + round(self._anchor_point[0] * self._boundingbox[2] * self._scale)),
             int(
                 self.y
                 + (self._anchor_point[1] * self._boundingbox[3] * self._scale)
@@ -399,7 +399,7 @@ def anchored_position(self, new_position):
             return  # Note: anchor_point must be set before setting anchored_position
         new_x = int(
             new_position[0]
-            - self._anchor_point[0] * (self._boundingbox[2] * self._scale)
+            - round(self._anchor_point[0] * (self._boundingbox[2] * self._scale))
         )
         new_y = int(
             new_position[1]