message: enable logging for tracked-fn-read-own-entity test
diff: //! Test that a `tracked` fn on a `salsa::input`
  //! compiles and executes successfully.
  -use salsa_2022_tests::{HasLogger, Logger};
  use expect_test::expect;
  +use salsa_2022_tests::{HasLogger, Logger};
  +use test_log::test;
  #[salsa::jar(db = Db)]
  struct Jar(MyInput, MyTracked, final_result, intermediate_result);
  