[TM-283] Merge master

Description

It's a routine MR which merges master into babylon. I have encountered some conflicts, the only non-trivial one is caused by !81 (merged) and addition of chain_id. I've added chain_id unpacking from string and corresponding test.

Related issue(s)

It's needed for TM-283 to reduce number of conflicts later

✅ Checklist for your Merge Request

Related changes (conditional)

• Tests (see short guidelines)

  • If I added new functionality, I added tests covering it.
  • If I fixed a bug, I added a regression test to prevent the bug from silently reappearing again.

• Documentation

  • I checked whether I should update the docs and did so if necessary:
    • README
    • Haddock
    • docs/

Stylistic guide (mandatory)

• My commits comply with the following policy.
• My code complies with the style guide.