maint(pat bumper): Update import for get_css_value.

Author: thet

src/pat/bumper/bumper.js

@@ -46,10 +46,10 @@ export default Base.extend({
         const scroll_container_x = this.findScrollContainer("x");
 
         const pos = {
-            top: utils.getCSSValue(this.el, "top", true),
-            right: utils.getCSSValue(this.el, "right", true),
-            bottom: utils.getCSSValue(this.el, "bottom", true),
-            left: utils.getCSSValue(this.el, "left", true),
+            top: dom.get_css_value(this.el, "top", true),
+            right: dom.get_css_value(this.el, "right", true),
+            bottom: dom.get_css_value(this.el, "bottom", true),
+            left: dom.get_css_value(this.el, "left", true),
         };
         const intersection_observer_config_y = {
             threshold: [1, 0.99, 0.97, 0.96, 0.95, 0.94, 0.93, 0.92, 0.91, 0.9],