Add @spawnia to July 2022 working group agenda (#187)

Author: spawnia

Diff for: working-group/agendas/2022/2022-07-21.md

@@ -96,6 +96,7 @@ This is an open meeting in which anyone in the GraphQL community may attend.
 Name                    | GitHub                 | Organization           | Location
 ----------------------- | ---------------------- | ---------------------- | --------------------------
 Benjie Gillam           | @Benjie                | Graphile               | Southampton, UK
+Benedikt Franke         | @spawnia               | graphql-php, lighthouse | Bavaria, Germany
 
 ## Agenda
 
@@ -110,3 +111,4 @@ Benjie Gillam           | @Benjie                | Graphile               | Sout
 1. Review agenda (2m, Organizer)
 1. Review previous meeting's action items (5m, Organizer)
 1. Discuss remaining steps for advancing this spec (45m, Benjie)
+1. Formulate plan for the test suite (15m, Benedikt)