Slightly adjust bulk cancel failure copy text

Author: jordanverasamy

packages/app/src/cli/services/bulk-operations/cancel-bulk-operation.test.ts

@@ -140,7 +140,7 @@ describe('cancelBulkOperation', () => {
     await cancelBulkOperation({organization: mockOrganization, storeFqdn, operationId, remoteApp: mockRemoteApp})
 
     expect(renderError).toHaveBeenCalledWith({
-      headline: 'Bulk operation cancellation errors.',
+      headline: 'Failed to cancel bulk operation.',
       body: 'id: Operation not found',
     })
   })

packages/app/src/cli/services/bulk-operations/cancel-bulk-operation.ts

@@ -43,7 +43,7 @@ export async function cancelBulkOperation(options: CancelBulkOperationOptions):
   })
 
   if (response.bulkOperationCancel?.userErrors?.length) {
-    renderBulkOperationUserErrors(response.bulkOperationCancel.userErrors, 'Bulk operation cancellation errors.')
+    renderBulkOperationUserErrors(response.bulkOperationCancel.userErrors, 'Failed to cancel bulk operation.')
     return
   }