[Bug] Can't create be pod

### Search before asking

- [x] I had searched in the [issues](https://github.com/apache/doris-operator/issues?q=is%3Aissue) and found no similar issues.

### Version

operator 25.8.0(image: apache/doris:operator-25.8.0)
doris 4.1.1(image: apache/doris:4.1.1)
AWS EKS kubernetes 1.36

### What's Wrong?

I installed operator 25.8.0, and used a normal DorisCluster yaml(ex: examples/doriscluster-sample.yaml) with feSpec.replicas=1 to start a doris cluster, but sometimes (not every time) BE pod wasn't created after FE pod is ready, until restart operator pod or modify doriscluster resource or kill FE pod.

### What You Expected?

operator 25.8.0 can also creates BE pod normally.

### How to Reproduce?

_No response_

### Anything Else?

_No response_

### Are you willing to submit PR?

- [x] Yes I am willing to submit a PR!

### Code of Conduct

- [x] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)