Fixed pipelines NuGet version number string

azure-pipelines.yml

@@ -16,7 +16,7 @@ stages:
             steps:
                 - template: templates/windows-build.yml
                   parameters:
-                      nuget_version: 5.4.0
+                      nuget_version: '5.4.0'
 
           - job: Linux
             displayName: Linux
@@ -62,4 +62,4 @@ stages:
             steps:
                 - template: templates/pack.yml
                   parameters:
-                      nuget_version: 5.4.0
+                      nuget_version: '5.4.0'

templates/pack.yml

@@ -48,7 +48,7 @@ steps:
           Contents: '*'
           TargetFolder: '$(Build.ArtifactStagingDirectory)\windows-drop\dotnet\lib\'
 
-    - task: NuGetToolInstaller@0
+    - task: NuGetToolInstaller@1
       displayName: 'Use NuGet'
       inputs:
           versionSpec: ${{ parameters.nuget_version }}

templates/windows-build.yml

@@ -4,7 +4,7 @@ parameters:
 
 steps:
 
-    - task: NuGetToolInstaller@0
+    - task: NuGetToolInstaller@1
       displayName: 'Use NuGet'
       inputs:
           versionSpec: ${{ parameters.nuget_version }}