fix: too_many_open_prs() fails without SSO access

Library/Homebrew/utils/github.rb

@@ -921,9 +921,11 @@ module GitHub
       }
     EOS
     puts
+    puts "In too_many_open_prs"
 
     homebrew_prs_count = 0
 
+    begin
       API.paginate_graphql(query) do |result|
         data = result.fetch("viewer")
         github_user = data.fetch("login")
@@ -941,6 +943,10 @@ module GitHub
 
         pull_requests.fetch("pageInfo")
       end
+    rescue => e
+      # Ignore SAML access errors (https://github.com/Homebrew/brew/issues/18610)
+      raise unless e.message.casecmp?("SAML")
+    end
 
     false
   end