it: do not copy JARs for extraDependencies

DependenciesIT#testExtraDependencies uses old versions of Ansible and
Confluence tasks to test the behavior of `extraDependencies`.
This creates classpath conflicts in tests that copy the `${deps.dir}`
as the payload's `lib/` folder.
Ley's use Maven Central to download those JARs.

Author: ibodrov

it/server/pom.xml

@@ -328,22 +328,6 @@
                                     <version>${project.version}</version>
                                     <destFileName>example.jar</destFileName>
                                 </artifactItem>
-
-                                <dependency>
-                                    <groupId>com.walmartlabs.concord.plugins.basic</groupId>
-                                    <artifactId>ansible-tasks</artifactId>
-                                    <version>2.15.0</version>
-                                </dependency>
-                                <dependency>
-                                    <groupId>com.walmartlabs.concord.plugins.basic</groupId>
-                                    <artifactId>ansible-tasks</artifactId>
-                                    <version>2.16.0</version>
-                                </dependency>
-                                <dependency>
-                                    <groupId>com.walmartlabs.concord.plugins</groupId>
-                                    <artifactId>confluence-task</artifactId>
-                                    <version>2.5.0</version>
-                                </dependency>
                             </artifactItems>
                             <outputDirectory>${deps.dir}</outputDirectory>
                         </configuration>