refactor: make action mandatory in asyncapi set for improved validation

Author: nashjain

src/schemas/validation/schema.yaml

@@ -274,7 +274,6 @@ $defs:
               - array
           action:
             description: Specifies the intended operation on the async channel, indicating whether the action is sending data to the channel or receiving data from the channel
-            required: true
             enum:
               - send
               - receive
@@ -285,6 +284,8 @@ $defs:
             minItems: 0
             items:
               $ref: '#/$defs/criterion-object'
+        required:
+          - action
       - if:
           oneOf:
             - required:
@@ -312,10 +313,8 @@ $defs:
       - oneOf:
           - required:
               - operationId
-              - action
           - required:
               - channelPath
-              - action
     $ref: '#/$defs/specification-extensions'
     unevaluatedProperties: false
   workflow-step-object: