Update config.yml

Attempted fix for 3.0 being found in 3.3.0

Author: ecentell-CPF

.circleci/config.yml

@@ -23,7 +23,7 @@ commands:
             $ProgressPreference='SilentlyContinue'
 
             $uri = 'https://api.github.com/repos/oneclick/rubyinstaller2/tags?per_page=200'
-            $releases = ((Invoke-WebRequest $uri) | ConvertFrom-Json).name | select-string -Pattern '<< parameters.ruby_version >>'
+            $releases = ((Invoke-WebRequest $uri) | ConvertFrom-Json).name | select-string (-join("RubyInstaller-" , "<< parameters.ruby_version >>" ))
             $target_release = (($releases | Sort-Object -Descending)[0] | Out-String).Trim()
             $target_version = $target_release.Substring($target_release.Length - 7)
             $download_uri = "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-$target_version/rubyinstaller-devkit-$target_version-x64.exe"