[CmdletBinding()]param(
    [Parameter(Mandatory)]
    [string]$GitHubProject,
    [string]$tag='latest'
)

Invoke-WebRequest https://github.com/$GitHubProject/releases/$tag -ErrorAction Stop |
    Select-Object -ExpandProperty Links |
    Where-Object title |
    Where-Object href -match 'tree/[^/]+$' |
    Select-Object -ExpandProperty title -First 1