fix(primitives): fix default text color for alert primitive (#3126)

Author: dbanksdesign

.changeset/many-cats-allow.md

@@ -0,0 +1,6 @@
+---
+"@aws-amplify/ui": patch
+"@aws-amplify/ui-react": patch
+---
+
+fix(primitives): fix default text color for alert primitive

packages/ui/src/theme/css/component/alert.scss

@@ -1,6 +1,7 @@
 .amplify-alert {
   align-items: var(--amplify-components-alert-align-items);
   background-color: var(--amplify-components-alert-background-color);
+  color: var(--amplify-components-alert-color);
   justify-content: var(--amplify-components-alert-justify-content);
   padding-block: var(--amplify-components-alert-padding-block);
   padding-inline: var(--amplify-components-alert-padding-inline);