Update README.md

Author: kyleconroy

README.md

@@ -5,8 +5,8 @@ version: '2'
 plugins:
 - name: kt
   wasm:
-    url: https://downloads.sqlc.dev/plugin/sqlc-gen-kotlin_1.1.0.wasm
-    sha256: 57890144f4effed4fe71855418b87ad26d53dc5ed2030a66ad77e5e3a93d77fb
+    url: https://downloads.sqlc.dev/plugin/sqlc-gen-kotlin_1.2.0.wasm
+    sha256: 22b437ecaea66417bbd3b958339d9868ba89368ce542c936c37305acf373104b
 sql:
 - schema: src/main/resources/authors/postgresql/schema.sql
   queries: src/main/resources/authors/postgresql/query.sql