RUSTSEC-2021-0153: `encoding` is unmaintained

[github-actions[bot]]

Details
Package	encoding
Version	0.2.33
Warning	unmaintained
URL	https://github.com/lifthrasiir/rust-encoding/issues/127
Patched Versions	n/a

Last release was on 2016-08-28. The issue inquiring as to the status of the crate has gone unanswered by the maintainer.

Possible alternatives

• encoding_rs