Sync license header with ASF

Author: slachiewicz

pom.xml

@@ -32,7 +32,7 @@ limitations under the License.
   </organization>
   <licenses>
     <license>
-      <name>Apache License, Version 2.0</name>
+      <name>Apache-2.0</name>
       <url>https://www.apache.org/licenses/LICENSE-2.0.txt</url>
       <distribution>repo</distribution>
     </license>