DRILL-8466. upgrade to logback 1.3.14 (#2854)

Author: pjfanning

pom.xml

@@ -68,7 +68,7 @@
     <curator.version>5.2.0</curator.version>
     <wiremock.standalone.version>2.23.2</wiremock.standalone.version>
     <jmockit.version>1.47</jmockit.version>
-    <logback.version>1.3.13</logback.version>
+    <logback.version>1.3.14</logback.version>
     <mockito.version>3.11.2</mockito.version>
     <!--
       Currently, Hive storage plugin only supports Apache Hive 3.1.3 or vendor specific variants of the