Protect Lassie HTTP endpoint

[bajtos]

Add authorisation to Lassie daemon.

• Add a new config option to Lassie
  → feat: protect HTTP API using access token filecoin-project/lassie#328
• Expose this new option in Rust Lassie
  → feat: add access_token configuration rusty-lassie#32
• Configure the access token with a random string in Zinnia runtime
  → fix: expose access_token in Daemon instances rusty-lassie#33
  → feat: secure Lassie server using authorization #273