Fix typo in aspect-ratio property

Author: mfranzke

packages/foundations/scss/icons/_icon-helpers.scss

@@ -161,7 +161,7 @@ $default-icon-font-size: var(--db-icon-font-size, #{$default-icon-size-rem});
 	overflow: clip;
 	vertical-align: var(--db-icon-vertical-align, middle);
 	block-size: $default-icon-font-size;
-	aspect-radio: 1 / 1;
+	aspect-ratio: 1;
 	flex-shrink: 0
 
 	@include icon-content($default-icon-content); // TODO: ONLY FOR data-icon