Merge pull request #113 from TouchInstinct/fix/keychain_path_again

fix keychain path again

xcode/commonFastfile

@@ -178,7 +178,7 @@ private_lane :openKeychain do |options|
   if is_ci?
     # workaround to avoid duplication problem
     # https://apple.stackexchange.com/questions/350633/multiple-duplicate-keychain-dbs-that-dont-get-cleaned-up
-    keychain_path = File.expand_path("~/Library/Keychains/#{options[:keychain_name]}.keychain")
+    keychain_path = File.expand_path("~/Library/Keychains/#{options[:keychain_name]}")
     keychain_exists = File.exist?("#{keychain_path}-db") || File.exist?(keychain_path)
 
     create_keychain(