Bump actions/cache from 2.1.5 to 2.1.6 #44.

Bump maven-javadoc-plugin from 3.2.0 to 3.3.0 #43.
diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index e2ab2e3..8646e62 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -83,12 +83,13 @@
           <action type="update" dev="ggregory">Update org.apache.maven.wagon:wagon-ssh 3.4.0 -> 3.4.3, #32</action>
           <action type="update" dev="ggregory">Update commons.pmd.version 3.13.0 -> 3.14.0.</action>
           <action type="update" dev="ggregory">Update commons.checkstyle-plugin.version 3.1.1 -> 3.1.2.</action>
-          <action type="update" dev="ggregory" due-to="Dependabot">Bump actions/cache from v2 to v2.1.5 #29, #38.</action>
+          <action type="update" dev="ggregory" due-to="Dependabot">Bump actions/cache from v2 to v2.1.6 #29, #38, #44.</action>
           <action type="update" dev="ggregory" due-to="Dependabot">Bump animal-sniffer-maven-plugin from 1.19 to 1.20 #30.</action>
           <action type="update" dev="ggregory" due-to="Dependabot">Bump checkstyle from 8.40 to 8.41 #33.</action>
           <action type="update" dev="ggregory" due-to="Gary Gregory">Bump actions/setup-java from v1.4.0 to v2.</action>
           <action type="update" dev="ggregory" due-to="Dependabot">Bump maven-bundle-plugin from 5.1.1 to 5.1.2 #35.</action>
           <action type="update" dev="ggregory" due-to="Dependabot">Bump maven-jxr-plugin from 3.0.0 to 3.1.1 #39.</action>
+          <action type="update" dev="ggregory" due-to="Dependabot">Bump maven-javadoc-plugin from 3.2.0 to 3.3.0 #43.</action>
         </release>
 
         <release version="52" date="2020-07-30" description="Add support for Java 15.">