bump schema compat

synapse/storage/schema/__init__.py

@@ -102,7 +102,7 @@
     - Adds a full_user_id column to tables profiles and user_filters.
 
 Changes in SCHEMA_VERSION = 77
-    - Add CHECK (full_user_id IS NOT NULL) to tables profiles and user_filters
+    - (Postgres) Add NOT VALID CHECK (full_user_id IS NOT NULL) to tables profiles and user_filters
 """
 
 
@@ -115,7 +115,7 @@
     #
     # insertions to the column `full_user_id` of tables profiles and user_filters can no
     # longer be null
-    75
+    76
 )
 """Limit on how far the synapse codebase can be rolled back without breaking db compat