fix(versions): Fix wrong version number when only one version dir (#4679)

Author: niheaven

CHANGELOG.md

@@ -17,6 +17,7 @@
 - **installed:** Fix 'core/installed' that mark failed app as 'installed' ([#4650](https://github.com/ScoopInstaller/Scoop/issues/4650))
 - **shim:** Fix PS1 shim error when in different drive in PS7 ([#4614](https://github.com/ScoopInstaller/Scoop/issues/4614))
 - **shim:** Fix `sh` shim error in WSL ([#4637](https://github.com/ScoopInstaller/Scoop/issues/4637))
+- **versions:** Fix wrong version number when only one version dir ([#4679](https://github.com/ScoopInstaller/Scoop/issues/4679))
 - **scoop-cleanup:** Remove apps other than current version ([#4665](https://github.com/ScoopInstaller/Scoop/issues/4665))
 - **scoop-update:** Skip updating non git buckets ([#4670](https://github.com/ScoopInstaller/Scoop/issues/4670))
   - **scoop-update:** Remove 'Done.' output ([#4672](https://github.com/ScoopInstaller/Scoop/issues/4672))

lib/versions.ps1

@@ -59,7 +59,7 @@ function Select-CurrentVersion {
         } else {
             $installedVersion = Get-InstalledVersion -AppName $AppName -Global:$Global
             if ($installedVersion) {
-                $currentVersion = $installedVersion[-1]
+                $currentVersion = @($installedVersion)[-1]
             } else {
                 $currentVersion = $null
             }