[Integration Name]: Brief description of the issue

### Integration Name

Infoblox Threat Defense [infoblox_threat_defense]

### Dataset Name

_No response_

### Integration Version

0.1.0

### Agent Version

9.2.5

### Agent Output Type

elasticsearch

### Elasticsearch Version

9.2.5

### OS Version and Architecture

RHEL 10.1

### Software/API Version

_No response_

### Error Message

"YAMLException: Duplicated key "processors" found in agent policy yaml, please check your yaml variables."

### Event Original

_No response_

### What did you do?

Trying to add a processor via Fleet integration "Change defaults" -> "Advanced options" -> "Processors" fails with "YAMLException: Duplicated key "processors" found in agent policy yaml, please check your yaml variables."

### What did you see?

Trying to add a processor via Fleet integration "Change defaults" -> "Advanced options" -> "Processors" fails with "YAMLException: Duplicated key "processors" found in agent policy yaml, please check your yaml variables."

### What did you expect to see?

Expected to processor to be added / merged to the processor list

### Anything else?

_No response_