Merge pull request #27 from google/dependabot/maven/junit-junit-4.13.1

Bump junit from 4.13-SNAPSHOT to 4.13.1

Author: eengle

pom.xml

@@ -84,7 +84,7 @@
     <maven.compiler.target>1.8</maven.compiler.target>
     <guava.version>29.0-jre</guava.version>
     <jsr305.version>3.0.1</jsr305.version>
-    <junit.version>4.13</junit.version>
+    <junit.version>4.13.1</junit.version>
     <bnd.version>5.3.0</bnd.version>
   </properties>