use the actions token to bypass these rate limits

.github/workflows/copilot-setup-steps.yml

@@ -17,4 +17,5 @@ jobs:
         shell: pwsh
         run: |
           ./eng/common/mcp/azure-sdk-mcp.ps1 -InstallDirectory $HOME/bin
-
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

eng/common/scripts/Helpers/AzSdkTool-Helpers.ps1

@@ -139,7 +139,14 @@ function Install-Standalone-Tool (
     if (!$Version -or $Version -eq "*") {
         Write-Host "Attempting to find latest version for package '$Package'"
         $releasesUrl = "https://api.github.com/repos/$Repository/releases"
-        $releases = Invoke-RestMethod -Uri $releasesUrl
+
+        # Use GitHub token if available to avoid rate limiting
+        $headers = @{}
+        if ($env:GITHUB_TOKEN) {
+            $headers["Authorization"] = "Bearer $env:GITHUB_TOKEN"
+        }
+
+        $releases = Invoke-RestMethod -Uri $releasesUrl -Headers $headers
         $found = $false
         foreach ($release in $releases) {
             if ($release.tag_name -like "$Package*") {