Specify version on junit-vintage-engine

Fixes gh-1376

Author: kazuki43zoo

pom.xml

@@ -196,7 +196,7 @@
     <dependency>
       <groupId>org.junit.vintage</groupId>
       <artifactId>junit-vintage-engine</artifactId>
-      <version>${junit-engine.version}</version>
+      <version>5.3.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>