chore: update warnings

Author: mrholek

scss/_tooltip.scss

@@ -18,7 +18,7 @@
   z-index: var(--#{$prefix}tooltip-zindex);
   display: block;
   margin: var(--#{$prefix}tooltip-margin);
-  @include deprecate("`$tooltip-margin`", "v5", "v5.x", true);
+  @include deprecate("`$tooltip-margin`", "v4", "v4.x", true);
   // Our parent element can be arbitrary since tooltips are by default inserted as a sibling of their target element.
   // So reset our font and text properties to avoid inheriting weird values.
   @include reset-text();

scss/mixins/_alert.scss

@@ -1,4 +1,4 @@
-@include deprecate("`alert-variant()`", "v5.0.0", "v6.0.0");
+@include deprecate("`alert-variant()`", "v4.3.0", "v6.0.0");
 
 // scss-docs-start alert-variant-mixin
 @mixin alert-variant($background, $border, $color) {

scss/mixins/_list-group.scss

@@ -1,4 +1,4 @@
-@include deprecate("`list-group-item-variant()`", "v5.0.0", "v6.0.0");
+@include deprecate("`list-group-item-variant()`", "v4.3.0", "v6.0.0");
 
 // List Groups