deps: update dependency commons-cli:commons-cli to v1.6.0 (#2710)

Author: renovate-bot

google-cloud-spanner-executor/pom.xml

@@ -122,7 +122,7 @@
     <dependency>
       <groupId>commons-cli</groupId>
       <artifactId>commons-cli</artifactId>
-      <version>1.5.0</version>
+      <version>1.6.0</version>
     </dependency>
     <dependency>
       <groupId>commons-io</groupId>