chore(workflow-engine): export cancel method (#11844)

What:
  * Workflow engine exports the method `cancel` to revert a workflow.

packages/modules/workflow-engine-redis/integration-tests/__fixtures__/index.ts

@@ -1,7 +1,8 @@
 export * from "./workflow_1"
 export * from "./workflow_2"
 export * from "./workflow_async"
+export * from "./workflow_async_compensate"
 export * from "./workflow_step_timeout"
+export * from "./workflow_sync"
 export * from "./workflow_transaction_timeout"
 export * from "./workflow_when"
-export * from "./workflow_async_compensate"

packages/modules/workflow-engine-redis/integration-tests/__fixtures__/workflow_sync.ts

@@ -0,0 +1,64 @@
+import {
+  createStep,
+  createWorkflow,
+  StepResponse,
+  WorkflowResponse,
+} from "@medusajs/framework/workflows-sdk"
+
+const step_1 = createStep(
+  "step_1",
+  jest.fn((input) => {
+    input.test = "test"
+    return new StepResponse(input, { compensate: 123 })
+  }),
+  jest.fn((compensateInput) => {
+    if (!compensateInput) {
+      return
+    }
+
+    return new StepResponse({
+      reverted: true,
+    })
+  })
+)
+
+const step_2 = createStep(
+  "step_2",
+  jest.fn((input, context) => {
+    if (input) {
+      return new StepResponse({ notAsyncResponse: input.hey })
+    }
+  }),
+  jest.fn((_, context) => {
+    return new StepResponse({
+      step: context.metadata.action,
+      idempotency_key: context.metadata.idempotency_key,
+      reverted: true,
+    })
+  })
+)
+
+const step_3 = createStep(
+  "step_3",
+  jest.fn((res) => {
+    return new StepResponse({
+      done: {
+        inputFromSyncStep: res.notAsyncResponse,
+      },
+    })
+  })
+)
+
+createWorkflow(
+  {
+    name: "workflow_sync",
+    idempotent: true,
+  },
+  function (input) {
+    step_1(input)
+
+    const ret2 = step_2({ hey: "oh" })
+
+    return new WorkflowResponse(step_3(ret2))
+  }
+)