fix: when Version is not set in Set-VSTeamAccount (#532)

* fix #531

* uddate changelog.md

Author: mnieto

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+## 7.13.1
+Merged [Pull Request](https://github.com/MethodsAndPractices/vsteam/pull/532) from [Miguel Nieto](https://github.com/mnieto) the following:
+- Fix Set-VSTeamAccount Error on Module Import [531](https://github.com/MethodsAndPractices/vsteam/issues/531)
+
+
 ## 7.13.0
 
 Merged [Pull Request](https://github.com/MethodsAndPractices/vsteam/pull/515) from [mrwalters1988](https://github.com/mrwalters1988) the following:

Source/VSTeam.psm1

@@ -38,7 +38,9 @@ if ($null -ne $env:TEAM_PROJECT) {
       # set vsteam account to initialize given variables properly
       $commonArgs = @{
          Account = $env:TEAM_ACCT
-         Version = $env:TEAM_VERSION
+      }
+      if (-not [string]::IsNullOrEmpty($env:TEAM_VERSION)) {
+         $commonArgs["Version"] = $env:TEAM_VERSION
       }
 
       if (_useBearerToken) {