SLING-7936 - Execute module integration tests in the launchpad-testing module

Execute ITs from the servlets.get module. For now, the dependency is added
manually to the POM but it should rather inferred by the slingstart-maven-plugin.

Not sure if the maven-surefire-plugin configuration can be automatically augmented.
diff --git a/pom.xml b/pom.xml
index 5651af6..9bcef83 100644
--- a/pom.xml
+++ b/pom.xml
@@ -138,6 +138,7 @@
                 <configuration>
                     <dependenciesToScan>
                         <dependency>org.apache.sling:org.apache.sling.launchpad.integration-tests</dependency>
+                        <dependency>org.apache.sling:org.apache.sling.servlets.get</dependency>
                     </dependenciesToScan>
                     <includes>
                         <include>**/*Test.java</include>
@@ -175,6 +176,15 @@
              </exclusions>
         </dependency>
 
+        <!-- TODO - should be automatically added as a dependency by the slingstart-maven-plugin -->
+        <dependency>
+             <groupId>org.apache.sling</groupId>
+             <artifactId>org.apache.sling.servlets.get</artifactId>
+             <version>2.1.37-SNAPSHOT</version>
+             <classifier>tests</classifier>
+             <scope>test</scope>
+        </dependency>
+ 
         <!-- depend on the exact same Slingstart version -->
         <dependency>
             <groupId>org.apache.sling</groupId>