TEZ-4558. Update build setup maven version and enforcer minimum to correct minimum (#350)

Co-authored-by: Jonathan Eagles <[email protected]>

Author: jteagles

BUILDING.txt

@@ -7,7 +7,7 @@ https://cwiki.apache.org/confluence/display/TEZ
 Requirements:
 
 * JDK 1.8+
-* Maven 3.1 or later
+* Maven 3.6.3 or later
 * Findbugs 2.0.2 or later (if running findbugs)
 * ProtocolBuffer 3.21.1
 * Internet connection for first build (to fetch all dependencies)

pom.xml

@@ -1058,7 +1058,7 @@
             <configuration>
               <rules>
                 <requireMavenVersion>
-                  <version>[3.0.2,)</version>
+                  <version>[3.6.3,)</version>
                 </requireMavenVersion>
                 <requireJavaVersion>
                   <version>[${maven.compiler.target},)</version>