update steno version to fix NPEs in log encoding

Author: BrandonArp

pom.xml

@@ -131,7 +131,7 @@
     <leveldb.version>0.7</leveldb.version>
     <leveldb.jni.version>1.8</leveldb.jni.version>
     <logback.version>1.1.8</logback.version>
-    <logback.steno.version>1.16.1</logback.steno.version>
+    <logback.steno.version>1.16.2</logback.steno.version>
     <log4j.over.slf4j.version>1.7.22</log4j.over.slf4j.version>
     <luaj.version>3.0.1</luaj.version>
     <maven.version>3.3.9</maven.version>