Update bootstrap 4.6.1

WebCms/Content/bootstrap/_modal.scss

@@ -83,6 +83,7 @@
   &::before {
     display: block; // IE10
     height: subtract(100vh, $modal-dialog-margin * 2);
+    height: min-content; // Reset height to 0 except on IE
     content: "";
   }
 
@@ -174,16 +175,15 @@
   flex-wrap: wrap;
   align-items: center; // vertically center
   justify-content: flex-end; // Right align buttons with flex property because text-align doesn't work on flex items
-  padding: $modal-inner-padding - $modal-footer-margin-between / 2;
+  padding: $modal-inner-padding - $modal-footer-margin-between * .5;
   border-top: $modal-footer-border-width solid $modal-footer-border-color;
   @include border-bottom-radius($modal-content-inner-border-radius);
 
   // Place margin between footer elements
   // This solution is far from ideal because of the universal selector usage,
   // but is needed to fix https://github.com/twbs/bootstrap/issues/24800
-  // stylelint-disable-next-line selector-max-universal
   > * {
-    margin: $modal-footer-margin-between / 2;
+    margin: $modal-footer-margin-between * .5;
   }
 }
 
@@ -217,6 +217,7 @@
 
     &::before {
       height: subtract(100vh, $modal-dialog-margin-y-sm-up * 2);
+      height: min-content;
     }
   }