Fix a problem in the gpu nuget pipeline: the yml missed a space

Author: snnn

tools/ci_build/github/azure-pipelines/nuget/templates/gpu.yml

@@ -49,7 +49,7 @@ jobs:
        zip -r linux-x64.zip linux-x64
        cp $(Build.BinariesDirectory)/linux*.zip $(Build.ArtifactStagingDirectory)
        ls -al $(Build.ArtifactStagingDirectory)
-       displayName: 'Create Artifacts'
+      displayName: 'Create Artifacts'
     - task: PublishPipelineArtifact@0
       displayName: 'Publish Pipeline Artifact'
       inputs: