message: Add FilterContextError::ValueNotFound test case
diff: mod helper;
  use gluesql::{
  - BlendError, ExecuteError, FilterError, JoinError, RowError, SelectError, StoreError,
  + BlendError, ExecuteError, FilterContextError, FilterError, JoinError, RowError, SelectError,
  + StoreError,
  };
  use helper::{Helper, SledHelper};
  @@ -38,6 +39,10 @@ fn error() {
  FilterError::NestedSelectRowNotFound.into(),
  "SELECT * FROM TableA WHERE id = (SELECT id FROM TableA WHERE id = 2);",
  ),
  + (
  + FilterContextError::ValueNotFound.into(),
  + "SELECT * FROM TableA WHERE noname = 1;",
  + ),
  (
  RowError::ValueNotFound.into(),
  "SELECT * FROM TableA WHERE id = (SELECT a FROM TableA WHERE id = 1 LIMIT 1);",
  