fix: set shadedArtifactAttached to true

Author: mutianf

google-cloud-bigtable-stats/pom.xml

@@ -77,7 +77,7 @@
  <goal>shade</goal>
  </goals>
  <configuration>
- <shadedArtifactAttached>false</shadedArtifactAttached>
+ <shadedArtifactAttached>true</shadedArtifactAttached>
  <promoteTransitiveDependencies>true</promoteTransitiveDependencies>
  <artifactSet>
  <includes>