Exclude duplicates in shaded jar

Exclude the double-inclusions of the Kohsuke's GitHub
API and the associated transitive dependencies.

Change-Id: I7fde16ff323b5f6f2f9aec32a48177e28bdbe3aa

github-plugin/pom.xml

diff --git a/github-plugin/pom.xml b/github-plugin/pom.xml
index 091d763..c7575d0 100644
--- a/github-plugin/pom.xml
+++ b/github-plugin/pom.xml
@@ -52,6 +52,10 @@
               <exclude>commons-codec:*:*</exclude>
               <exclude>commons-io:*:*</exclude>
               <exclude>com.google.guava:*</exclude>
+              <exclude>com.fasterxml.jackson.core:*</exclude>
+              <exclude>org.kohsuke:github-api:*</exclude>
+              <exclude>org.jenkins-ci:annotation-indexer:*</exclude>
+              <exclude>com.infradna.tool:*</exclude>
             </excludes>
           </artifactSet>
           <transformers>