RUSTSEC-2021-0153: encoding is unmaintained

[github-actions]

encoding is unmaintained

Details
Status	unmaintained
Package	encoding
Version	0.2.33
URL	lifthrasiir/rust-encoding#127
Date	2021-12-05

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

See advisory page for additional details.

[fhennig]

To fix this: product-config needs to be released (is 0.4.0 now, but the update to java-properties to 0.2.0 was already done) and the new product-config release needs to be referenced in operator-rs, and then that new operator-rs version needs to be added here.