[Feature] why this workflowrun demo failed.

I use this demo
https://github.com/kubevela/workflow/blob/main/examples/workflow-run/apply-applications.yaml

yaml is
```
apiVersion: core.oam.dev/v1alpha1
kind: WorkflowRun
metadata:
name: apply-applications
namespace: default
annotations:
workflowrun.oam.dev/debug: "true"
spec:
workflowSpec:
steps:
- name: apply-app2
type: apply-app
properties:
ref:
name: my-app
key: application
type: configMap
---
apiVersion: v1
kind: ConfigMap
metadata:
name: my-app
namespace: default
data:
application: |
apiVersion: core.oam.dev/v1beta1
kind: Application
metadata:
name: webservice-app2
spec:
components:
- name: express-server2
type: webservice
properties:
image: crccheck/hello-world
ports:
- port: 8000
```

kubevela version : v1.8.1
workflow version: v0.5.0

result:

the workflowrun status is failed

error message :
```
run step(provider=kube,do=apply): the body of the request was in an unknown format - accepted media types include: application/json-patch+json, application/merge-patch+json, application/apply-patch+yaml
```
but webservice-app2 application is running and have a pod express-server2-58f7474c55-txqxk is runing

the next ,The yaml file I use under configMap is in another namespace test
```
apiVersion: core.oam.dev/v1beta1
kind: Application
metadata:
name: webservice-app2
namespace: test
spec:
components:
- name: express-server2
type: webservice
properties:
image: crccheck/hello-world
ports:
- port: 8000
```
the application in namespace test is successed and running ,

why apply-applications workflowrun prompt messaget is unknown format and status is failed

Start with examples/workflow-run/apply-applications.yaml and reproduce the failure using KubeVela v1.8.1 and workflow v0.5.0. Compare the reported apply error with the successful applications in the default and test namespaces; done means identifying why the WorkflowRun is marked failed and documenting or correcting the behavior.

Written by the indexing model from the issue text.