Merge pull request #111 from Flux159/pr111

Removing on delete set null from types since that is not supported in spanner

Author: Flux159

src/types/common.ts

@@ -6,7 +6,7 @@ export type OnDeleteAction =
   | "cascade"
   | "restrict"
   | "no action"
-  | "set null"
+  // | "set null" // Not supported in Spanner
   | "set default";
 
 export interface ForeignKeyConfig {