Do not import io.quarkus:quarkus-bom into quarkus-bom-test, fix #48308

Author: ppalaga

bom/test/pom.xml

@@ -28,14 +28,6 @@
     <dependencyManagement>
         <dependencies>
 
-            <dependency>
-                <groupId>io.quarkus</groupId>
-                <artifactId>quarkus-bom</artifactId>
-                <version>${project.version}</version>
-                <type>pom</type>
-                <scope>import</scope>
-            </dependency>
-
             <dependency>
                 <groupId>io.reactivex</groupId>
                 <artifactId>rxjava</artifactId>