Add latest version of monitor to go track 1 SDK (Azure#17128)

* upgrade one api-version and add to go, see what happens

* fix monitor generation in track 1

* fix the condition

Author: ArcturusZhang

specification/monitor/resource-manager/readme.go.md

@@ -39,6 +39,7 @@ batch:
   - tag: package-2019-11
   - tag: package-2020-10-only
   - tag: package-2021-07
+  - tag: package-2021-09
 ```
 
 ### Tag: package-2017-09 and go
@@ -120,4 +121,13 @@ Please also specify `--go-sdk-folder=<path to the root directory of your azure-s
 
 ``` yaml $(tag) == 'package-2021-07' && $(go)
 output-folder: $(go-sdk-folder)/services/preview/monitor/mgmt/2021-07-01-preview/$(namespace)
+```
+
+### Tag: package-2021-09 and go
+
+These settings apply only when `--tag=package-2021-09 --go` is specified on the command line.
+Please also specify `--go-sdk-folder=<path to the root directory of your azure-sdk-for-go clone>`.
+
+``` yaml $(tag) == 'package-2021-09' && $(go)
+output-folder: $(go-sdk-folder)/services/preview/monitor/mgmt/2021-09-01-preview/$(namespace)
 ```

specification/monitor/resource-manager/readme.md

@@ -67,7 +67,7 @@ input-file:
 - Microsoft.Insights/preview/2017-12-01-preview/metricNamespaces_API.json
 - Microsoft.Insights/preview/2018-11-27-preview/vmInsightsOnboarding_API.json
 - Microsoft.Insights/preview/2019-10-17-preview/privateLinkScopes_API.json
-- Microsoft.Insights/stable/2017-04-01/activityLogAlerts_API.json
+- Microsoft.Insights/stable/2020-10-01/activityLogAlerts_API.json
 - Microsoft.Insights/stable/2021-04-01/dataCollectionEndpoints_API.json
 - Microsoft.Insights/stable/2021-04-01/dataCollectionRuleAssociations_API.json
 - Microsoft.Insights/stable/2021-04-01/dataCollectionRules_API.json
@@ -898,7 +898,9 @@ directive:
     reason: 'Operations API is defined in a separate swagger spec for Microsoft.Insights namespace (https://github.com/Azure/azure-rest-api-specs/blob/master/specification/monitor/resource-manager/Microsoft.Insights/stable/2015-04-01/operations_API.json)'
 ```
 
-``` yaml ($(go) && !$(track2) && $(tag) == 'package-2021-07') || $(csharp) || $(validation)
+This section is a temporary solution to resolve the failure in those pipeline that is still using modeler v1. 
+
+``` yaml ($(go) && !$(track2) && ($(tag) == 'package-2021-07' || $(tag) == 'package-2021-09')) || $(csharp) || $(validation)
 directive:
 - from: activityLogAlerts_API.json
   where: $.definitions