[patch] added db2_channel param to aiservice pipeline (#169)

Author: karol-czarnecki

src/mas/devops/templates/pipelinerun-install.yml.j2

@@ -787,6 +787,8 @@ spec:
       value: "{{ aiservice_channel }}"
     - name: db2_action_aiservice
       value: "{{ db2_action_aiservice }}"
+    - name: db2_channel
+      value: "{{ db2_channel }}"
 
     - name: environment_type
       value: "{{ environment_type }}"