Add missing RestAssured restAssured() to TestConfig

Follows up on: #48987

Author: geoand

core/deployment/src/main/java/io/quarkus/deployment/dev/testing/TestConfig.java

@@ -173,6 +173,11 @@ public interface TestConfig {
      */
     Container container();
 
+    /**
+     * RestAssured related test settings
+     */
+    RestAssured restAssured();
+
     /**
      * Additional launch parameters to be used when Quarkus launches the produced artifact for {@code @QuarkusIntegrationTest}
      * When the artifact is a {@code jar}, this string is passed right after the {@code java} command.