Transform the moudlemd file from v2 to v3 format

v3 format is required for RHEL 9

mariadb.yaml

@@ -1,6 +1,6 @@
 ---
-document: modulemd
-version: 2
+document: modulemd-packager
+version: 3
 data:
   name: mariadb
   stream: 10.11
@@ -11,13 +11,10 @@ data:
     daemon (mysqld) and many different client programs and libraries. The base package
     contains the standard MariaDB/MySQL client programs and generic MySQL files.
   license:
-    module:
     - MIT
-  dependencies:
-  - buildrequires:
-      platform: [el9]
-    requires:
-      platform: [el9]
+  configurations:
+    - context: rhel9
+      platform: el9
   references:
     community: http://mariadb.org
     documentation: https://mariadb.com/kb/en/library/documentation/