Set parent to 4.0

lock maven-site-plugin to 3.4
lock findbugs-maven-plugin to 3.0.4

Author: rfscholte

pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>org.codehaus.plexus</groupId>
     <artifactId>plexus-components</artifactId>
-    <version>4.0-SNAPSHOT</version>
+    <version>4.0</version>
   </parent>
 
   <artifactId>plexus-resources</artifactId>
@@ -51,6 +51,15 @@
   </dependencies>
 
   <build>
+    <pluginManagement>
+      <plugins>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-site-plugin</artifactId>
+          <version>3.4</version>
+        </plugin>
+      </plugins>
+    </pluginManagement>
     <plugins>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
@@ -70,4 +79,15 @@
       </plugin>
     </plugins>
   </build>
+  
+  <reporting>
+    <plugins>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>findbugs-maven-plugin</artifactId>
+        <version>3.0.4</version>
+      </plugin>
+    </plugins>
+  </reporting>
+  
 </project>