cargo_bin returns incorrect paths when build-dir is used

[kornelski]

assert_cmd::cargo::cargo_bin returns incorrect path when used from integration tests. The tests are ran from the build-dir, but assert_cmd expects them to be in the target-dir.

assert_cmd/src/cargo.rs

Lines 220 to 233 in ee88946

	// Adapted from
	// https://github.com/rust-lang/cargo/blob/485670b3983b52289a2f353d589c57fae2f60f82/tests/testsuite/support/mod.rs#L507
	fn target_dir() -> path::PathBuf {
	env::current_exe()
	.ok()
	.map(|mut path| {
	path.pop();
	if path.ends_with("deps") {
	path.pop();
	}
	path
	})
	.expect("this should only be used where a `current_exe` can be set")
	}

The same code in snapbox is already deprecated:

https://github.com/assert-rs/snapbox/blob/90fd7f0c6d9e0d462bfcaa3a8df66a462a2be28a/crates/snapbox/src/cmd.rs#L854-L877

[epage]

These were deprecated in #248.