Bump zerolog version to 1.31.0

[ScruffyPants]

zerolog has been updated quite a few times in last years, however, the version for node at the time of writing this is v1.26.1. In v1.28.0 there exists a change, which, for node's implementation could be considered a breaking change (The change can be viewed here: rs/zerolog#457). This makes it problematic to use zerolog in new services/packages and then combine node with them as node is unable to compile with newer zerolog versions.

Solution:

1. Bump zerolog versiong to 1.31.0 (latest at the time of writing this)
2. Fix broken code.