change 2.0 to 2

Author: irvanalhaq9

manim/animation/creation.py

@@ -387,7 +387,7 @@ def _adjust_stroke_width_for_text(
         if stroke_width is not None:
             return stroke_width
         if not isinstance(vmobject, SVGMobject):
-            return 2.0  # default in DrawBorderThenFill
+            return 2  # default in DrawBorderThenFill
         font_size = getattr(vmobject, "font_size", DEFAULT_FONT_SIZE)
         return (font_size / DEFAULT_FONT_SIZE) * DEFAULT_STROKE_WIDTH * scale_factor