Bump actions/checkout from 3.0.2 to 3.1.0 #133

Author: garydgregory

src/changes/changes.xml

@@ -42,8 +42,8 @@
       <action type="update" dev="ggregory" due-to="Dependabot, Gary Gregory">
         Bump actions/cache from 2.1.7 to 3.0.9 #97, #130.
       </action>
-      <action type="update" dev="ggregory" due-to="Gary Gregory">
-        Bump actions/checkout from 3 to 3.0.2.
+      <action type="update" dev="ggregory" due-to="Gary Gregory, Dependabot">
+        Bump actions/checkout from 3 to 3.1.0 #133.
       </action>
       <action type="update" dev="ggregory" due-to="Gary Gregory">
         Bump actions/setup-java from 2 to 3.5.1.