Do not ask for user input if the SSH channel is already closed

Dependencies

• [2] ENKQ3QZG Forward the exit status messages from the SSH background loop to the client (solving hangs)
• [3] SXEYMYF7 Fixing the bad changes in history (unfortunately, by rebooting).
• [4] TPEH2XNB 1.0.0-alpha.28, with Tokio 1.0
• [5] JRENVH5D Reqwest 0.11

Change contents

• edit in pijul/src/remote/ssh.rs at line 183
  [3.481]

  [3.30498]
  + if h.is_closed() {

  + return false;

  + }
• edit in pijul/src/remote/ssh.rs at line 220
  [3.617]

  [3.31219]
  + if h.is_closed() {

  + return Ok(false);

  + }
• replacement in pijul/Cargo.toml at line 64
  [3.1615]→[2.203:222](∅→∅)
  − thrussh = "0.32.2"
  [3.1615]

  [3.565]
  + thrussh = "0.32.7"