Fix bat cache --clear not clearing the --target dir if specified

tests/integration_tests.rs

@@ -892,11 +892,8 @@ fn config_read_arguments_from_file() {
         .stdout(predicate::eq("dummy-pager-from-config\n").normalize());
 }
 
-// Ignore this test for now as `bat cache --clear` only targets the default cache dir.
-// `bat cache --clear` must clear the `--target` dir for this test to pass.
 #[cfg(unix)]
 #[test]
-#[ignore]
 fn cache_clear() {
     let src_dir = "cache_source";
     let tmp_dir = tempdir().expect("can create temporary directory");