Authenticator Config not applied correctly to multiple executions

### Current Behavior

The following configuration is not applied to both executions (only to one):

```yaml
authenticatorConfig:
- alias: email 2FA config
config:
codeLength: 6
codeLifetime: 15
authenticationFlows:
- alias: CDP Browser - Email OTP
description: Flow handling Email OTP
providerId: basic-flow
topLevel: false
builtIn: false
authenticationExecutions:
- authenticator: email-two-factor
authenticatorConfig: email 2FA config
requirement: REQUIRED
priority: 20
userSetupAllowed: false
- alias: CDP Registration - Email OTP
description: Flow handling Email OTP
providerId: basic-flow
topLevel: false
builtIn: false
authenticationExecutions:
- authenticator: email-two-factor
authenticatorConfig: email 2FA config
requirement: REQUIRED
priority: 20
userSetupAllowed: false
```

The configuration was correctly applied with 6.2.1-26.0.5 on Keycloak 26.0.8.

### Expected Behavior

Authenticator Config is applied to both executions.

### Steps To Reproduce

```markdown

```

### Environment

- Keycloak Version: 26.1.4
- keycloak-config-cli Version: 6.4.0-26.1.0

### Anything else?

_No response_