Revert "refactor: make for.do an array as well"

This reverts commit 119b7b8.

Author: matthias-pichler

dsl-reference.md

@@ -560,14 +560,13 @@ do:
         at: index
       while: .vet != null
       do:
-        - checkFleas:
-            listen:
-              to:
-                one:
-                  with:
-                    type: com.fake.petclinic.pets.checkup.completed.v2
-              output:
-                to: '.pets + [{ "id": $pet.id }]'        
+        listen:
+          to:
+            one:
+              with:
+                type: com.fake.petclinic.pets.checkup.completed.v2
+          output:
+            to: '.pets + [{ "id": $pet.id }]'        
 ```
 
 #### Listen

examples/accumulate-room-readings.yaml

@@ -30,12 +30,11 @@ do:
         each: reading
         in: .readings
       do:
-        - callLogReading:
-            call: openapi
-            with:
-              document:
-                uri: http://myorg.io/ordersservices.json
-              operationId: logreading
+        call: openapi
+        with:
+          document:
+            uri: http://myorg.io/ordersservices.json
+          operationId: logreading
   - generateReport:
       call: openapi
       with:

schema/workflow.yaml

@@ -76,7 +76,14 @@ properties:
         description: The workflow's secrets.
     description: Defines the workflow's reusable components.
   do:
-    $ref: '#/$defs/do'
+    type: array
+    minItems: 1
+    items:
+      type: object
+      minProperties: 1
+      maxProperties: 1
+      additionalProperties:
+        $ref: '#/$defs/task'
     description: Defines the tasks the workflow must perform
   timeout:
     $ref: '#/$defs/timeout'
@@ -101,15 +108,6 @@ properties:
         description: Specifies the events that trigger the workflow execution.
     description: Schedules the workflow
 $defs:
-  do:
-    type: array
-    minItems: 1
-    items:
-      type: object
-      minProperties: 1
-      maxProperties: 1
-      additionalProperties:
-        $ref: '#/$defs/task'
   task:
     type: object
     properties:
@@ -382,7 +380,7 @@ $defs:
         type: string
         description: A runtime expression that represents the condition, if any, that must be met for the iteration to continue.
       do:
-        $ref: '#/$defs/do'
+        $ref: '#/$defs/task'
     description: Allows workflows to iterate over a collection of items, executing a defined set of subtasks for each item in the collection. This task type is instrumental in handling scenarios such as batch processing, data transformation, and repetitive operations across datasets.
     required: [ for, do ]
   listenTask: