Use supervisor.ticks_ms for scrolling_label animation

Author: RetiredWizard

adafruit_display_text/scrolling_label.py

@@ -26,7 +26,7 @@
 __version__ = "0.0.0+auto.0"
 __repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_Display_Text.git"
 
-import time
+from supervisor import ticks_ms
 from adafruit_display_text import bitmap_label
 
 try:
@@ -81,8 +81,10 @@ def update(self, force: bool = False) -> None:
          Default is False.
         :return: None
         """
-        _now = time.monotonic()
-        if force or self._last_animate_time + self.animate_time <= _now:
+        _now = ticks_ms()
+        if _now < self._last_animate_time:  # ticks_ms has rolled over
+            self._last_animate_time = _now
+        if force or self._last_animate_time + (self.animate_time*1000) <= _now:
             if len(self.full_text) <= self.max_characters:
                 super()._set_text(self.full_text, self.scale)
                 self._last_animate_time = _now