Skip tests in intermediate build steps to fix Linux port conflict (#100)

* Initial plan

* Skip tests in step-01 through step-04 to prevent MariaDB port conflicts

Set skipTests=true in the parent POM so all modules skip tests by default,
and override it to false in pom-step-05.xml where tests should run.

This fixes the build failure on Linux where running tests in intermediate
step modules (step-02, step-03) caused MariaDB port conflicts when
step-04 tried to start its demo database on port 33328.

Co-authored-by: dkayiwa <1390773+dkayiwa@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: dkayiwa <1390773+dkayiwa@users.noreply.github.com>

Author: Copilot

pom-step-05.xml

@@ -16,6 +16,10 @@
 		<relativePath>pom.xml</relativePath>
 	</parent>
 
+	<properties>
+		<skipTests>false</skipTests>
+	</properties>
+
     <dependencies>
 
         <dependency>

pom.xml

@@ -40,6 +40,7 @@
     <junitVersion>5.12.2</junitVersion>
     <mockitoVersion>3.12.4</mockitoVersion>
     <mariadb4jVersion>3.3.1</mariadb4jVersion>
+    <skipTests>true</skipTests>
   </properties>
 
   <dependencies>