Create new pipeline for cosmos mgmt package (#18659)

* Create new pipeline for cosmos management package

sdk/cosmosdb/ci.mgmt.yml

@@ -0,0 +1,34 @@
+# NOTE: Please refer to https://aka.ms/azsdk/engsys/ci-yaml before editing this file.
+
+trigger:
+  branches:
+    include:
+      - main
+      - release/*
+      - hotfix/*
+  paths:
+    include:
+      - sdk/cosmosdb/arm-cosmosdb/
+      - sdk/cosmosdb/ci.mgmt.yml
+
+pr:
+  branches:
+    include:
+      - main
+      - feature/*
+      - release/*
+      - hotfix/*
+    exclude:
+      - feature/v4    
+  paths:
+    include:
+      - sdk/cosmosdb/arm-cosmosdb/
+      - sdk/cosmosdb/ci.mgmt.yml
+
+extends:
+  template: /eng/pipelines/templates/stages/archetype-sdk-client.yml
+  parameters:
+    ServiceDirectory: cosmosdb
+    Artifacts:
+      - name: azure-arm-cosmosdb
+        safeName: azurearmcosmosdb

sdk/cosmosdb/ci.yml

@@ -8,7 +8,8 @@ trigger:
       - hotfix/*
   paths:
     include:
-      - sdk/cosmosdb/
+      - sdk/cosmosdb/cosmos/
+      - sdk/cosmosdb/ci.yml
 
 pr:
   branches:
@@ -19,10 +20,11 @@ pr:
       - hotfix/*
   paths:
     include:
-      - sdk/cosmosdb/
+      - sdk/cosmosdb/cosmos/
+      - sdk/cosmosdb/ci.yml
 
 extends:
-  template: ../../eng/pipelines/templates/stages/cosmos-sdk-client.yml #NOTE: Non-standard template.
+  template: /eng/pipelines/templates/stages/cosmos-sdk-client.yml #NOTE: Non-standard template.
   parameters:
     ServiceDirectory: cosmosdb
     # Disable unit tests because they are no-op. Integration tests from the