Wrap connection errors in Webfinger#perform (#40135)

app/lib/webfinger.rb

@@ -61,6 +61,8 @@ class Webfinger
     raise Webfinger::Error, "Invalid JSON in response for #{@uri}"
   rescue Addressable::URI::InvalidURIError
     raise Webfinger::Error, "Invalid URI for #{@uri}"
+  rescue *Mastodon::HTTP_CONNECTION_ERRORS => e
+    raise Webfinger::Error, "Error performing webfinger query for #{@uri}: #{e}"
   end
 
   private

app/models/remote_follow.rb

@@ -66,7 +66,7 @@ class RemoteFollow
 
   def acct_resource
     @acct_resource ||= Webfinger.new("acct:#{acct}").perform
-  rescue Webfinger::Error, *Mastodon::HTTP_CONNECTION_ERRORS
+  rescue Webfinger::Error
     nil
   end