Rescue SSL error in verify link service (mastodon#9914)

If the first link to be verified contains a rel=me link with a SSL
error, the VerifyAccountLinksWorker will fail and not try the following
links. This rescues the SSL error when fetching the link, avoiding this
issue.

app/services/verify_link_service.rb

@@ -10,7 +10,7 @@ def call(field)
     return unless link_back_present?
 
     field.mark_verified!
-  rescue HTTP::Error, Addressable::URI::InvalidURIError, Mastodon::HostValidationError, Mastodon::LengthValidationError => e
+  rescue OpenSSL::SSL::SSLError, HTTP::Error, Addressable::URI::InvalidURIError, Mastodon::HostValidationError, Mastodon::LengthValidationError => e
     Rails.logger.debug "Error fetching link #{@url}: #{e}"
     nil
   end