[AVM Module Issue]: Module creates a predefined custom rule

### Check for previous/existing GitHub issues

- [X] I have checked for previous/existing GitHub issues

### Issue Type?

Bug

### Module Name

avm/res/network/front-door-web-application-firewall-policy

### (Optional) Module Version

0.3.0

### Description

front-door-web-application-firewall-policy module creates the following predefined custom rule:

```bicep
@description('Optional. The custom rules inside the policy.')
param customRules object = {
rules: [
{
name: 'ApplyGeoFilter'
priority: 100
enabledState: 'Enabled'
ruleType: 'MatchRule'
action: 'Block'
matchConditions: [
{
matchVariable: 'RemoteAddr'
operator: 'GeoMatch'
negateCondition: true
matchValue: ['ZZ']
}
]
}
]
}
```

### (Optional) Correlation Id

_No response_