Update azure-pipelines.yml

Use `BuildConfiguration` for dotnet pack

Author: hangy

azure-pipelines.yml

@@ -38,7 +38,7 @@ steps:
 - powershell: |
     mkdir $(Build.ArtifactStagingDirectory)\Packages
     $version = .\nbgv get-version -f json | ConvertFrom-Json
-    dotnet pack .\Microsoft.Security.Application.Encoder\Microsoft.Security.Application.Encoder.csproj --no-build -o $(Build.ArtifactStagingDirectory)\Packages /p:NuspecProperties="version=$($version.NuGetPackageVersion);RepositoryType=git;RepositoryCommit=$($version.GitCommitId);RepositoryUrl=https://github.com/hangy/AntiXSS" 
+    dotnet pack .\Microsoft.Security.Application.Encoder\Microsoft.Security.Application.Encoder.csproj -c $(BuildConfiguration) --no-build -o $(Build.ArtifactStagingDirectory)\Packages /p:NuspecProperties="version=$($version.NuGetPackageVersion);RepositoryType=git;RepositoryCommit=$($version.GitCommitId);RepositoryUrl=https://github.com/hangy/AntiXSS" 
   displayName: Create packages
 
 - task: DotNetCoreCLI@2