Change Details

[qa] Ensure bitcoind processes are cleaned up when tests end Backport of PR12904 Completes T446

[qa] Ensure bitcoind processes are cleaned up when tests end Backport of PR12904 https://github.com/bitcoin/bitcoin/pull/12904/files Completes T446

[qa] Ensure bitcoind processes are cleaned up when tests end Backport of PR12904 https://github.com/bitcoin/bitcoin/pull/12904/files Completes T446