run dependency:copy-dependencies during java build to fetch maven plugin dependencies (#69)

Author: Dan Stowell

languages/java.toml

@@ -10,7 +10,7 @@ packages = [
 setup = [
   "mkdir -p /config/language-server && cd /config/language-server && wget http://download.eclipse.org/jdtls/milestones/0.21.0/jdt-language-server-0.21.0-201806152234.tar.gz && tar -xzf jdt-language-server-0.21.0-201806152234.tar.gz && rm jdt-language-server-0.21.0-201806152234.tar.gz && chown runner:runner -R /config/language-server",
   "echo '<project> <modelVersion>4.0.0</modelVersion> <groupId>mygroupid</groupId> <artifactId>myartifactid</artifactId> <version>0.0-SNAPSHOT</version> <build><plugins> <plugin> <groupId>de.qaware.maven</groupId> <artifactId>go-offline-maven-plugin</artifactId> <version>1.2.5</version> <configuration> <dynamicDependencies> <DynamicDependency> <groupId>org.apache.maven.surefire</groupId> <artifactId>surefire-junit4</artifactId> <version>2.20.1</version> <repositoryType>PLUGIN</repositoryType> </DynamicDependency> <DynamicDependency> <groupId>com.querydsl</groupId> <artifactId>querydsl-apt</artifactId> <version>4.2.1</version> <classifier>jpa</classifier> <repositoryType>MAIN</repositoryType> </DynamicDependency> </dynamicDependencies> </configuration> </plugin> </plugins></build> </project>' > /tmp/emptypom.xml",
-  "mvn -f /tmp/emptypom.xml -Dmaven.repo.local=/home/runner/.m2/repository de.qaware.maven:go-offline-maven-plugin:resolve-dependencies",
+  "mvn -f /tmp/emptypom.xml -Dmaven.repo.local=/home/runner/.m2/repository de.qaware.maven:go-offline-maven-plugin:resolve-dependencies dependency:copy-dependencies",
   "rm /tmp/emptypom.xml"
 ]