fix(set-cookie): compatible sameSite type with parse

Author: pi0

src/set-cookie/parse.ts

@@ -57,7 +57,7 @@ export function parseSetCookie(
         break;
       }
       case "samesite": {
-        cookie.sameSite = partValue;
+        cookie.sameSite = partValue as SetCookie["sameSite"];
         break;
       }
       default: {

src/set-cookie/types.ts

@@ -56,7 +56,7 @@ export interface SetCookie {
   /**
    * Indicates a cookie ought not to be sent along with cross-site requests
    */
-  sameSite?: string | undefined;
+  sameSite?: true | false | "lax" | "strict" | "none" | undefined;
 
   [key: string]: unknown;
 }