PDFBOX-4071: avoid "Unable to resolve system scoped dependency" error

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1859394 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/parent/pom.xml b/parent/pom.xml
index b62be1b..6ad98a5 100644
--- a/parent/pom.xml
+++ b/parent/pom.xml
@@ -167,6 +167,8 @@
                         <version>4.0.2</version>
                         <configuration>
                             <failBuildOnAnyVulnerability>true</failBuildOnAnyVulnerability>
+                            <!-- https://github.com/jeremylong/DependencyCheck/issues/1574 -->
+                            <skipSystemScope>true</skipSystemScope>
                         </configuration>
                         <executions>
                             <execution>