fix(typesync): update @graphprotocol/grc-20 to version 0.21.2

Author: marcusrein

apps/typesync/package.json

@@ -46,7 +46,7 @@
     "@effect/sql": "latest",
     "@effect/sql-sqlite-node": "latest",
     "@effect/vitest": "latest",
-    "@graphprotocol/grc-20": "^0.18.0",
+    "@graphprotocol/grc-20": "^0.21.2",
     "@graphql-codegen/cli": "^5.0.7",
     "@graphql-codegen/client-preset": "^4.8.2",
     "@graphql-codegen/typescript": "^4.1.6",