ci: strip em-dashes from workflow (PS5.1 CP1252 misdecode broke parser run #6)

.gitea/workflows/build.yml

@@ -40,7 +40,7 @@ jobs:
         shell: powershell
         run: |
           if (-not (Test-Path 'C:\LLVM16\bin\libclang.dll')) {
-            # Portable tar.xz instead of NSIS installer — NSIS /S silently
+            # Portable tar.xz instead of NSIS installer -- NSIS /S silently
             # fails on unprivileged runners (some files missing post-install,
             # caught run #4: "LLVM 16 install failed" after Start-Process -Wait
             # returned 0). Extract via Windows 10/11 built-in tar.exe.
@@ -58,7 +58,7 @@ jobs:
             Remove-Item $dst -Force -ErrorAction SilentlyContinue
             if (-not (Test-Path 'C:\LLVM16\bin\libclang.dll')) {
               Get-ChildItem 'C:\LLVM16' -Recurse -Filter libclang.dll | Select-Object FullName
-              throw "LLVM 16 extract failed — libclang.dll not found"
+              throw "LLVM 16 extract failed -- libclang.dll not found"
             }
           }
           Write-Output "libclang.dll: $((Get-Item 'C:\LLVM16\bin\libclang.dll').Length) bytes"
@@ -125,7 +125,7 @@ jobs:
           $rel = Invoke-RestMethod -Uri "https://git.yowieit.com/api/v1/repos/infra/rustdesk-yowie/releases" -Method Post -Headers $headers -Body $body
           Write-Output "release id: $($rel.id), tag: $($rel.tag_name)"
           # Upload rustdesk.exe as release asset via curl.exe (Win 10+ bundled)
-          # — PowerShell multipart binary handling is fragile; curl.exe -F is bulletproof.
+          # -- PowerShell multipart binary handling is fragile; curl.exe -F is bulletproof.
           $assetUri = "https://git.yowieit.com/api/v1/repos/infra/rustdesk-yowie/releases/$($rel.id)/assets?name=rustdesk.exe"
           & curl.exe -sk -X POST `
             -H "Authorization: token $env:RELEASE_TOKEN" `