refactor: Update vitest patterns in dependabot configuration

Author: mfranzke

.github/dependabot.yml

@@ -93,7 +93,8 @@ updates:
       vite:
         patterns:
           - "vite*"
-          - "vitest*"
+          - "vitest"
+          - "@vitest*"
         update-types:
           - "minor"
           - "major"