Extract wrapper constant for HTTP::* error classes (#32285)

lib/exceptions.rb

@@ -36,4 +36,10 @@ module Mastodon
       super()
     end
   end
+
+  HTTP_CONNECTION_ERRORS = [
+    HTTP::ConnectionError,
+    HTTP::Error,
+    HTTP::TimeoutError,
+  ].freeze
 end

lib/mastodon/cli/accounts.rb

@@ -305,7 +305,7 @@ module Mastodon::CLI
 
         begin
           code = Request.new(:head, account.uri).perform(&:code)
-        rescue HTTP::TimeoutError, HTTP::ConnectionError, OpenSSL::SSL::SSLError, Mastodon::PrivateNetworkAddressError
+        rescue *Mastodon::HTTP_CONNECTION_ERRORS, OpenSSL::SSL::SSLError, Mastodon::PrivateNetworkAddressError
           skip_domains << account.domain
         end