Update Spring repackage configuration for uber-jar tests

- `finalName` turns out to be a read-only property, even though it does work...
- `outputTimestamp` is no unnecessary, as the `project.build.outputTimestamp` is used by default

integrationtest/mapper/orm-spring-uberjar/application/pom.xml

@@ -87,13 +87,9 @@
                 </executions>
                 <configuration>
                     <outputDirectory>${project.build.directory}</outputDirectory>
-                    <finalName>app-repackaged</finalName>
                     <mainClass>
                         org.hibernate.search.integrationtest.spring.repackaged.application.Application
                     </mainClass>
-                    <!-- Not critical here as it's just for tests.
-                         This hardcoded value allows us to cache integration tests in Develocity. -->
-                    <outputTimestamp>2017-11-06T19:19:00+01:00</outputTimestamp>
                 </configuration>
             </plugin>
             <plugin>
@@ -113,7 +109,7 @@
                     </environmentVariables>
                     <systemPropertyVariables>
                         <test.launcher-command>${java-version.test.launcher}</test.launcher-command>
-                        <test.repackaged-jar-path>${project.build.directory}/app-repackaged.jar</test.repackaged-jar-path>
+                        <test.repackaged-jar-path>${project.build.directory}/hibernate-search-integrationtest-spring-repackaged-application-${project.version}.jar</test.repackaged-jar-path>
                     </systemPropertyVariables>
                 </configuration>
                 <executions>