fix: require strictly increasing renewal scores

release.ps1

@@ -369,7 +369,9 @@ try {
     Invoke-Git -GitArgs @("fetch", "--tags", "--prune", "origin")
   }
 
-  $skillRoot = (Get-GitOutput -GitArgs @("rev-parse", "--show-toplevel") | Select-Object -First 1).Trim()
+  # Git output can be decoded through the legacy console code page on Windows
+  # PowerShell 5.1, corrupting a repository path that contains Chinese characters.
+  $skillRoot = $PSScriptRoot
   if (Test-Path -LiteralPath (Join-Path $skillRoot "SKILL.md")) {
     Assert-SkillReleasePackagingSources -SkillRoot $skillRoot
   }