Bump spotbugs from 4.1.4 to 4.2.0 #172.

Author: Gary Gregory

src/changes/changes.xml

@@ -101,7 +101,7 @@ The <action> type attribute can be add,update,fix,remove.
         Update spotbugs from 4.1.2 to 4.1.4 #158, #164, #165.
       </action>
       <action dev="ggregory" type="update" due-to="Dependabot">
-        Bump spotbugs-maven-plugin from 4.0.4 to 4.1.3 #161.
+        Bump spotbugs-maven-plugin from 4.0.4 to 4.2.0, #161, #172.
       </action>
       <action dev="ggregory" type="update" due-to="Gary Gregory, Dependabot">
         Update org.junit-pioneer:junit-pioneer 0.9.0 -> 1.0.0 #159, #162.