Updating gitversion (#66)

To avoid deployment error.

azure-pipelines/iac/templates/step.install-gitversion.yml

@@ -1,7 +1,7 @@
 parameters:
 - name: gitversionVersion
   type: string
-  default: 5.6.6
+  default: 5.12.0
 - name: gitversionConfigFile
   type: string
 
@@ -15,4 +15,4 @@ steps:
   displayName: 'Execute GitVersion'
   inputs:
     useConfigFile: true
-    configFilePath: '${{ parameters.gitversionConfigFile }}'
+    configFilePath: '${{ parameters.gitversionConfigFile }}'