Add missing version for maven-javadoc-plugin

Author: scordio

.github/workflows/main.yml

@@ -41,4 +41,4 @@ jobs:
           distribution: 'zulu'
           cache: maven
       - name: Generate Javadoc
-        run: ./mvnw $MAVEN_ARGS javadoc:javadoc
+        run: ./mvnw $MAVEN_ARGS compile javadoc:javadoc

pom.xml

@@ -98,6 +98,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-javadoc-plugin</artifactId>
+          <version>3.8.0</version>
           <configuration>
             <failOnWarnings>true</failOnWarnings>
             <links>