TIKA-4553 -- fix siegfried after rm'ing TikaConfig

Author: tballison

tika-detectors/tika-detector-siegfried/pom.xml

@@ -35,6 +35,12 @@
       <version>${project.version}</version>
       <scope>provided</scope>
     </dependency>
+    <dependency>
+      <groupId>${project.groupId}</groupId>
+      <artifactId>tika-serialization</artifactId>
+      <version>${project.version}</version>
+      <scope>test</scope>
+    </dependency>
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-databind</artifactId>