JCR-5247: update Apache parent pom to version 38 (#358)

Author: reschke

jackrabbit-parent/pom.xml

@@ -27,7 +27,7 @@
   <parent>
     <groupId>org.apache</groupId>
     <artifactId>apache</artifactId>
-    <version>37</version>
+    <version>38</version>
     <relativePath />
   </parent>
 
@@ -365,18 +365,10 @@
             <argLine>${test.opts}</argLine>
           </configuration>
         </plugin>
-        <plugin>
-          <artifactId>maven-jar-plugin</artifactId>
-          <version>3.4.2</version>
-        </plugin>
         <plugin>
           <artifactId>maven-rar-plugin</artifactId>
           <version>3.0.0</version>
         </plugin>
-        <plugin>
-          <artifactId>maven-war-plugin</artifactId>
-          <version>3.4.0</version>
-        </plugin>
         <plugin>
           <artifactId>maven-idea-plugin</artifactId>
           <version>2.2.1</version>
@@ -422,25 +414,12 @@
           <artifactId>cobertura-maven-plugin</artifactId>
           <version>2.7</version>
         </plugin>
-        <plugin>
-          <artifactId>maven-antrun-plugin</artifactId>
-          <version>3.1.0</version>
-        </plugin>
       </plugins>
     </pluginManagement>
   </build>
 
   <reporting>
     <plugins>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-javadoc-plugin</artifactId>
-      </plugin>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-checkstyle-plugin</artifactId>
-        <version>3.5.0</version>
-      </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-pmd-plugin</artifactId>