Update scroll-animations-1.vim

https://www.w3.org/TR/2023/WD-scroll-animations-1-20230428/

Author: hail2u

after/syntax/css/scroll-animations-1.vim

@@ -1,2 +1,2 @@
-syn keyword cssFontProp contained scroll-timeline-name scroll-timeline-axis scroll-timeline view-timeline-name view-timeline-axis view-timeline-inset view-timeline animation-range animation-delay-start animation-delay-end
-syn keyword cssFontAttr contained entry exit
+syn keyword cssFontProp contained scroll-timeline-name scroll-timeline-axis scroll-timeline-attachment scroll-timeline view-timeline-name view-timeline-axis view-timeline-inset view-timeline-attachment view-timeline animation-range animation-delay-start animation-delay-end
+syn keyword cssFontAttr contained entry exit defer ancestor

test/test.css

@@ -800,16 +800,20 @@ mask {
 .scroll-animations-1 {
 	scroll-timeline-name: auto;
 	scroll-timeline-axis: auto;
+	scroll-timeline-attachment: auto;
 	scroll-timeline: auto;
 	view-timeline-name: auto;
 	view-timeline-axis: auto;
 	view-timeline-inset: auto;
+	view-timeline-attachment: auto;
 	view-timeline: auto;
 	animation-range: auto;
 	animation-delay-start: auto;
 	animation-delay-end: auto;
 	display: entry;
 	display: exit;
+	display: defer;
+	display: ancestor;
 }
 
 .scroll-snap-1 {