fix(api): cannot reset password

Author: GZTimeWalker

src/GZCTF/Controllers/AccountController.cs

@@ -212,7 +212,7 @@ public async Task<IActionResult> PasswordReset([FromBody] PasswordResetModel mod
 
         user.UpdateByHttpContext(HttpContext);
 
-        var token = Codec.Base64.Encode(model.RToken);
+        var token = Codec.Base64.Decode(model.RToken);
         var result = await userManager.ResetPasswordAsync(user, token, password);
 
         if (!result.Succeeded)