Fix try-runtime follow-chain, try-runtime upgrade tuple tests, cli test utils (#13794)

* new test for try-runtime tuple stuff

* fix

* remove development comment

* formatting

* remove todo comment

* follow-chain working test

* refactor common cli testing utils

* fix comment

* revert Cargo.lock changes

* update Cargo.lock

* improve doc comment

* fix error typo

* update Cargo.lock

* feature gate try-runtime test

* build_substrate cli test util

* feature gate follow_chain tests

* move fn start_node to test-utils

* improve test pkg name

* use tokio Child and Command

* remove redundant import

* fix ci

* fix ci

* don't leave hanging processes

* improved child process cleanup

* use existing KillChildOnDrop

* remove redundant comment

* Update test-utils/cli/src/lib.rs

Co-authored-by: Koute <koute@users.noreply.github.com>

---------

Co-authored-by: kianenigma <kian@parity.io>
Co-authored-by: Koute <koute@users.noreply.github.com>

substrate/bin/node/cli/tests/purge_chain_works.rs

@@ -20,7 +20,7 @@ use assert_cmd::cargo::cargo_bin;
 use std::process::Command;
 use tempfile::tempdir;
 
-pub mod common;
+use substrate_cli_test_utils as common;
 
 #[tokio::test]
 #[cfg(unix)]