Make sure quarkus-undertow is built before RESTEasy

quarkus-undertow is not in the dependencies but AsyncIOUndertowTest
relies on quarkus-undertow so we need to make sure it is built before
RESTEasy.

Fixes regular build issues in snapshot deployment and early access
build (these builds do not rely on a previous full build before running
the tests).

extensions/resteasy-classic/resteasy/deployment/pom.xml

@@ -79,6 +79,19 @@
                 </exclusion>
             </exclusions>
         </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-undertow-deployment</artifactId>
+            <version>${project.version}</version>
+            <type>pom</type>
+            <scope>test</scope>
+            <exclusions>
+                <exclusion>
+                    <groupId>*</groupId>
+                    <artifactId>*</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
     </dependencies>
 
     <build>