Verify whether SourceLocation is a UNC path and select the appropriat…

…e ApiVersion (#1479)

src/Microsoft.PowerShell.PSResourceGet.psm1

@@ -45,7 +45,7 @@ function Import-PSGetRepository {
                             Trusted = $_.Trusted
                             PassThru = $true
                             Force = $Force
-                            ApiVersion = 'v2'
+                            ApiVersion = if ([Uri]::new($_.SourceLocation).Scheme -eq 'file') {'local'} else {'v2'}
                         }
                         Register-PSResourceRepository @registerPSResourceRepositorySplat
                     }