Bump codecov/codecov-action from 2 to 3

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 2 to 3.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/master/CHANGELOG.md)
- [Commits](https://github.com/codecov/codecov-action/compare/v2...v3)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/coverage.yml

@@ -42,6 +42,6 @@ jobs:
       run: mvn -V test jacoco:report --file pom.xml --no-transfer-progress
 
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v2
+      uses: codecov/codecov-action@v3
       with:
         files: ./target/site/jacoco/jacoco.xml

src/changes/changes.xml

@@ -295,6 +295,9 @@
     <action type="update" dev="ggregory" due-to="Dependabot">
       Bump maven-pmd-plugin from 3.15.0 to 3.16.0 #286.
     </action>
+    <action type="update" dev="kinow" due-to="Dependabot">
+      Bump codecov/codecov-action from 2 to 3 #297.
+    </action>
   </release>
   <release version="4.4" date="2019-07-05" description="Maintenance release.">
     <action issue="COLLECTIONS-710" dev="ggregory" type="fix" due-to="Yu Shi, Gary Gregory">