Special characters (" and ^) are removed when passing environment variables via Azure CLI (PowerShell)

### Describe the bug

Hello everyone,

I'm having issues setting environment variables in an Azure Container Instance while using Azure CLI with PowerShell inside an Azure DevOps release task.

I'm using the following command:
```
az container create `
...
--resource-group "$(RESOURCE_GROUP)" `
--environment-variables `
"BLOBSTORAGE_EMAIL_CONTAINER=`"$(BLOBSTORAGE_EMAIL_CONTAINER)`"" `
"APP_DB_PASSWORD=`"$(APP_DB_PASSWORD)`""
```
Problem

BLOBSTORAGE_EMAIL_CONTAINER works correctly even though it contains special characters like:

```wadwad&asda=asd-as:a%```

Characters included:

```& = - : %```

Using the format:

```"VAR=`"$(VAR)`""```

works fine for this variable.

However, APP_DB_PASSWORD contains:

```wada"wada^```

When using the same format:

```"APP_DB_PASSWORD=`"$(APP_DB_PASSWORD)`""```

I get a parsing error.

If I try:

```'$(APP_DB_PASSWORD)'```

it does not throw an error, but the value loses the special characters (" and ^) when passed to the container.

Additional Info

Variables are stored in an Azure DevOps **Variable Group**

The task type is **Azure CLI**

Script type: **PowerShell**

The issue only happens when the value contains ```"``` or ```^```

Debug logs show the characters are removed before reaching Azure

I’ve tried:

Using ```$env:APP_DB_PASSWORD```

Passing values via JSON

Different quoting/escaping approaches

But I haven't found a reliable solution.

Has anyone experienced this or found a safe way to pass environment variables containing ```"``` and ```^``` via Azure CLI in a PowerShell release task?

Thank you.

### Related command

az container create `
--resource-group `
--name `
--image `
--registry-login-server `
--registry-username `
--registry-password `
--ip-address Public `
--ports `
--cpu `
--memory `
--os-type `
--restart-policy `
--location `
--no-wait `
--debug `
--environment-variables

### Errors

Code:
```--environment-variables APP_DB_PASSWORD='$(APP_DB_PASSWORD)'```
Error:
```
Incomplete string token.
```

Code:
```"APP_DB_PASSWORD=`"$(APP_DB_PASSWORD)`""```
Error:
```
The string is missing the terminator: ".
```

### Issue script & Debug output

DEBUG: cli.azure.cli.core.sdk.policies: {"properties": {"containers": [{"name": "email-service-prod", "properties": {"image": "xxxxxxxxx", "ports": [{"protocol": "TCP", "port": 80}], "environmentVariables": [{"name": "SMTP_HOST", "value": "xxxxxxxxx"}, {"name": "SMTP_PORT", "value": "xxxxxxxxx"}, {"name": "SMTP_USER", "value": "xxxxxxxxx"}, {"name": "SMTP_PASSWORD", "value": "xxxxxxxxx"}, {"name": "SMTP_SSL", "value": "true"}, {"name": "FROM_EMAIL", "value": "xxxxxxxxx"}, {"name": "FROM_NAME", "value": "xxxxxxxxx"}, {"name": "BLOBSTORAGE_ACCOUNT_NAME", "value": "xxxxxxxxx"}, {"name": "BLOBSTORAGE_EMAIL_SASTOKEN", "value": "wadwad&asda=asd-as:a%"}, {"name": "BLOBSTORAGE_EMAIL_CONTAINER", "value": "email-template"}, {"name": "APP_DB_HOST", "value": "xxxxxxxxx"}, {"name": "APP_DB_PORT", "value": "xxxxxxxxx"}, {"name": "APP_DB_USER", "value": "xxxxxxxxx"}, {"name": "APP_DB_NAME", "value": "app-prod"}, {"name": "APP_SSL_MODE", "value": "require"}, {"name": "EVENT_DB_HOST", "value": "xxxxxxxxx"}, {"name": "EVENT_DB_PORT", "value": "xxxxxxxxx"}, {"name": "EVENT_DB_NAMESPACE", "value": "xxxxxxxxx"}, {"name": "EVENT_DB_USER", "value": "xxxxxxxxx"}, {"name": "EVENT_DB_PASSWORD", "value": "***"}, {"name": "APP_DB_PASSWORD", "value": "wada"wada^"}], "resources": {"requests": {"memoryInGB": 1.5, "cpu": 1.0}}, "configMap": {"keyValuePairs": {}}}}], "imageRegistryCredentials": [{"server": "xxxxxxxxx", "username": "xxxxxxxxx", "password": "***"}], "restartPolicy": "OnFailure", "ipAddress": {"ports": [{"protocol": "TCP", "port": 80}], "type": "Public", "autoGeneratedDomainNameLabelScope": "Unsecure"}, "osType": "Linux"}, "location": "westeurope", "tags": {}}

### Expected behavior

The container instance Environment variable be the same as in the variable group

### Environment Summary

"azure-cli": "2.75.0",
"azure-cli-core": "2.75.0",
"azure-cli-telemetry": "1.1.0",
"extensions": {}

### Additional context

_No response_