Bump actions/checkout from 2.3.4 to 2.4.0

Bumps [actions/checkout](https://github.com/actions/checkout) from 2.3.4 to 2.4.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2.3.4...v2.4.0)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/maven.yml

@@ -31,7 +31,7 @@ jobs:
 #            experimental: true
 
     steps:
-    - uses: actions/checkout@v2.3.4
+    - uses: actions/checkout@v2.4.0
     - uses: actions/cache@v2.1.6
       with:
         path: ~/.m2/repository

src/changes/changes.xml

@@ -53,7 +53,7 @@ The <action> type attribute can be add,update,fix,remove.
       <action issue="CODEC-296" dev="mattsicker" type="add" due-to="Matt Sicker">Add support for Blake3 family of hashes.</action>
       <!-- UPDATE -->
       <action                   dev="ggregory" type="update" due-to="Dependabot, Gary Gregory">Bump actions/setup-java from v1.4.1 to v2 #60, #62.</action>
-      <action                   dev="ggregory" type="update" due-to="Dependabot">Bump actions/checkout from v2.3.2 to v2.3.4 #65.</action> 
+      <action                   dev="ggregory" type="update" due-to="Dependabot">Bump actions/checkout from v2.3.2 to v2.4.0 #65, #98.</action>
       <action                   dev="ggregory" type="update" due-to="Dependabot">Bump actions/cache from v2 to v2.1.4 #75.</action>
       <action                   dev="ggregory" type="update" due-to="Dependabot">Bump junit from 4.13.1 to 4.13.2 #76.</action>
       <action                   dev="ggregory" type="update" due-to="Gary Gregory">Bump Java 7 to 8.</action>