Merge pull request #18 from immutables/dependabot/maven/maven-shade-plugin/junit-junit-4.13.1

Bump junit from 4.10 to 4.13.1 in /maven-shade-plugin

Author: elucash

maven-shade-plugin/pom.xml

@@ -123,7 +123,7 @@ under the License.
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.10</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>