Update to ensure $AzureSitesEnvironment cleanup

Author: MrHinsh

.github/workflows/close-pr.yaml

@@ -19,6 +19,7 @@ jobs:
         with:
           azure_static_web_apps_api_token: ${{ secrets.AZURE_STATIC_WEB_APPS_API_TOKEN }}
           action: 'close'
+          deployment_environment: canary-${{ github.event.pull_request.number }}
           app_location: ''
           skip_app_build: true
           skip_api_build: true

.github/workflows/main.yml

@@ -134,7 +134,7 @@ jobs:
                     $WingetApplicationId = "nkdagility.azure-devops-migration-tools.Canary";
                     $docs_deploy_folder = "./azure-devops-migration-tools/canary/$branchSafeName"
                     $docs_baseURL = "/learn/azure-devops-migration-tools/canary/$branchSafeName"
-                    $AzureSitesEnvironment = "$branchSafeName"
+                    $AzureSitesEnvironment = "canary-${{ github.event.pull_request.number }}"
                     $RunRelease = 'false'
                 }
             }