Update modulemd to v3.

gating.yaml

@@ -1,6 +1,6 @@
 --- !Policy
 product_versions:
-  - rhel-8
+  - rhel-9
 decision_context: osci_compose_gate_modules
 subject_type: redhat-module
 rules:

nodejs.yaml

@@ -1,6 +1,6 @@
 ---
-document: modulemd
-version: 2
+document: modulemd-packager
+version: 3
 data:
   name: nodejs
   stream: 18
@@ -12,13 +12,14 @@ data:
     makes it lightweight and efficient, perfect for data-intensive
     real-time applications that run across distributed devices.
   license:
-        module:
   - MIT
-    dependencies:
-        - buildrequires:
-            platform: [el8]
-          requires:
-            platform: [el8]
+  configurations:
+  - context: rhel9
+    platform: el9
+    buildopts:
+      rpms:
+        macros: |
+            %_with_bundled 1
   references:
     community: http://nodejs.org
     documentation: http://nodejs.org/en/docs
@@ -46,10 +47,6 @@ data:
     - nodejs
     - nodejs-devel
     - npm
-    buildopts:
-        rpms:
-            macros: |
-                %_with_bundled 1
   components:
     rpms:
       nodejs-packaging: