SCANMAVEN-210: Move to Java 11 (#220)

* Move to Java 11
* Update Maven plugins

Author: Angelo Buono

pom.xml

@@ -78,9 +78,9 @@
   </distributionManagement>
 
   <properties>
-    <mojo.java.target>1.7</mojo.java.target>
     <mavenVersion>3.9.4</mavenVersion>
-    <maven.compiler.release>8</maven.compiler.release>
+    <mojo.java.target>11</mojo.java.target>
+    <maven.compiler.release>11</maven.compiler.release>
     <sonar.exclusions>src/main/java/org/apache/maven/shared/dependency/tree/DependencyTreeResolutionListener.java,target/generated-sources/**/*</sonar.exclusions>
     <gitRepositoryName>sonar-scanner-maven</gitRepositoryName>
   </properties>
@@ -200,7 +200,7 @@
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-javadoc-plugin</artifactId>
           <configuration>
-            <source>8</source>
+            <source>11</source>
           </configuration>
         </plugin>
       </plugins>
@@ -232,7 +232,7 @@
       <plugin>
         <groupId>org.codehaus.plexus</groupId>
         <artifactId>plexus-component-metadata</artifactId>
-        <version>1.7</version>
+        <version>2.2.0</version>
         <executions>
           <execution>
             <goals>
@@ -244,15 +244,15 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-release-plugin</artifactId>
-        <version>2.5.3</version>
+        <version>3.0.1</version>
         <configuration>
           <goals>deploy site site:stage</goals>
         </configuration>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-site-plugin</artifactId>
-        <version>3.4</version>
+        <version>4.0.0-M14</version>
         <executions>
           <execution>
             <id>stage-for-scm-publish</id>
@@ -269,7 +269,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-scm-publish-plugin</artifactId>
-        <version>1.1</version>
+        <version>3.2.1</version>
         <configuration>
           <scmBranch>gh-pages</scmBranch>
         </configuration>
@@ -328,7 +328,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-invoker-plugin</artifactId>
-        <version>3.6.0</version>
+        <version>3.6.1</version>
         <configuration>
           <cloneProjectsTo>${project.build.directory}/it</cloneProjectsTo>
           <settingsFile>src/it/settings.xml</settingsFile>
@@ -365,7 +365,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-plugin-plugin</artifactId>
-        <version>3.4</version>
+        <version>3.13.0</version>
         <configuration>
           <requirements>
             <jdk>${mojo.java.target}</jdk>
@@ -375,7 +375,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-project-info-reports-plugin</artifactId>
-        <version>2.8.1</version>
+        <version>3.5.0</version>
         <reportSets>
           <reportSet>
             <reports>