Change Protobuf BOM license from Apache to BSD

java/bom/pom.xml

@@ -29,8 +29,8 @@
 
   <licenses>
     <license>
-      <name>The Apache License, Version 2.0</name>
-      <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
+      <name>3-Clause BSD License</name>
+      <url>https://opensource.org/licenses/BSD-3-Clause</url>
     </license>
   </licenses>