azure scheduled query rules ARM template

### Type of issue

Typo

### Reference command name
`az deployment group create --name XXX --resource-group XXX --template-file XXX.json --parameters XXX.json --mode Incremental --output json`

### Overview
This issue is similar to https://github.com/Azure/azure-cli/issues/27138.

When using `operator: Equals` as specified in the Microsoft ARM documentation, the request fails with the error: `Requested value 'Equals' was not found.`

### Feedback

Upon investigation, it appears that the correct value should be `Equal`, as confirmed by inspecting the actual network request on the portal. This discrepancy between the documentation and expected value leads to confusion and failed deployments.

```json
{
"properties": {
"criteria": {
"allOf": [
{
"query": "AzureActivity | where TimeGenerated > ago(1h) | where OperationNameValue contains \"Microsoft.ContainerService/managedClusters/agentpools/write\" | where ActivityStatusValue == \"Started\"",
"timeAggregation": "Count",
"dimensions": [],
"resourceIdColumn": "",
"operator": "Equal",
"threshold": 1,
"failingPeriods": {
"numberOfEvaluationPeriods": 1,
"minFailingPeriodsToAlert": 1
}
}
]
}
}
}
```

After digging into the CLI extension where operator conversion is performed, it seems like the correct operator to be using is `Equal` instead of `Equals`.
https://github.com/Azure/azure-cli-extensions/blob/main/src/scheduled-query/azext_scheduled_query/grammar/scheduled_query/ScheduleQueryConditionValidator.py

I have attempted to change the operator to `Equal` inside the ARM template, and the deployment is able to go through successfully. I have yet to test both terraform and bicep template, but it might be worth updating the mentioned attribute in both documentation as well.

### Page URL

https://learn.microsoft.com/en-us/azure/templates/microsoft.insights/2022-06-15/scheduledqueryrules?pivots=deployment-language-arm-template

### Content source URL

_No response_

### Author

_No response_

### Document Id

_No response_