Require Maven 3.6.3+

pom.xml

@@ -66,15 +66,13 @@ under the License.
   <properties>
     <recommendedJavaBuildVersion>11</recommendedJavaBuildVersion>
     <sitePluginVersion>${maven-site-plugin.version}</sitePluginVersion>
-    <mavenVersion>3.2.5</mavenVersion>
     <skipTests>false</skipTests>
   </properties>
 
   <dependencies>
     <dependency>
       <groupId>org.apache.maven</groupId>
       <artifactId>maven-plugin-api</artifactId>
-      <version>${mavenVersion}</version>
       <scope>provided</scope>
     </dependency>
     <dependency>
@@ -98,7 +96,6 @@ under the License.
     <dependency>
       <groupId>org.apache.maven.plugin-tools</groupId>
       <artifactId>maven-plugin-annotations</artifactId>
-      <version>3.10.2</version>
       <scope>provided</scope>
     </dependency>
     <dependency>
@@ -157,7 +154,6 @@ under the License.
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.13.2</version>
       <scope>test</scope>
     </dependency>
   </dependencies>