Update APIScan task configuration in build pipeline (#56)

Update APIScan task

Author: Jasdriel

azure-pipelines/build.yml

@@ -6,9 +6,6 @@ resources:
     type: git
     name: 1ESPipelineTemplates/1ESPipelineTemplates
     ref: refs/tags/release
-variables:
-- name: ApiScanClientId
-  value: d318cba7-db4d-4fb3-99e1-01879cb74e91
 extends:
   template: v1/1ES.Official.PipelineTemplate.yml@1ESPipelineTemplates
   parameters:
@@ -91,6 +88,7 @@ extends:
         - task: APIScan@2
           displayName: Run APIScan
           inputs:
+            azureSubscription: 'VSEng-APIScanSC' 
             softwareFolder: '$(Build.SourcesDirectory)/out/Release/x64;$(Build.SourcesDirectory)/out/Release/x86'
             softwareName: 'VCPerf'
             softwareVersionNum: '$(VersionString)'
@@ -99,4 +97,5 @@ extends:
             preserveTempFiles: true
             toolVersion: LatestPreRelease
           env:
-            AzureServicesAuthConnectionString: runAs=App;AppId=$(ApiScanClientId)
+            AzureServicesAuthConnectionString: RunAs=App;AppId=d318cba7-db4d-4fb3-99e1-01879cb74e91;TenantId=72f988bf-86f1-41af-91ab-2d7cd011db47;ServiceConnectionId=93e24264-c5e6-4681-8175-ec8a41668480;
+            SYSTEM_ACCESSTOKEN: $(System.AccessToken)