fix(deps): update dependency @salesforce-ux/design-system to v2.28.1

Author: renovate[bot]

package.json

@@ -28,7 +28,7 @@
   },
   "homepage": "https://github.com/zaki-yama/copy-title-and-url-as-markdown#readme",
   "dependencies": {
-    "@salesforce-ux/design-system": "2.18.1",
+    "@salesforce-ux/design-system": "2.28.1",
     "react": "18.2.0",
     "react-dom": "18.2.0",
     "react-lightning-design-system": "5.2.5"

yarn.lock

@@ -1585,10 +1585,10 @@
   resolved "https://registry.yarnpkg.com/@rtsao/scc/-/scc-1.1.0.tgz#927dd2fae9bc3361403ac2c7a00c32ddce9ad7e8"
   integrity sha512-zt6OdqaDoOnJ1ZYsCYGt9YmWzDXl4vQdKTyJev62gFhRGKdx7mcT54V9KIjg+d2wi9EXsPvAPKe7i7WjfVWB8g==
 
-"@salesforce-ux/design-system@2.18.1":
-  version "2.18.1"
-  resolved "https://registry.yarnpkg.com/@salesforce-ux/design-system/-/design-system-2.18.1.tgz#568a5d1d528c92fca0e1226af2c3ddbdaf04218f"
-  integrity sha512-yrnzHkafWRPDSAwyXrLjehbJIkLNTXJ61sOjorHQiExTopwcY+K6as3aFjHGpKzPS8OPXCzz9pQ8a34urcBmQg==
+"@salesforce-ux/design-system@2.28.1":
+  version "2.28.1"
+  resolved "https://registry.yarnpkg.com/@salesforce-ux/design-system/-/design-system-2.28.1.tgz#d107ab6a3e4847361b7312b69e2d38abef958e93"
+  integrity sha512-0UayRaoO+Adfjwyvwe5LZ2AxQBc1nJQdhK9eUxnFLE/HaAb0fBTbIfEPWLUuQwmn53s2KKXthWULAFZRUka0zw==
 
 "@storybook/[email protected]":
   version "6.5.16"