RUSTSEC-2021-0139: ansi_term is Unmaintained

[github-actions]

Details
Package	ansi_term
Version	0.12.1
Warning	unmaintained
URL	ogham/rust-ansi-term#72
Patched Versions	n/a

The maintainer has advised that this crate is deprecated and will not receive any maintenance.

The crate does not seem to have much dependencies and may or may not be ok to use as-is.

Last release seems to have been three years ago.

Possible Alternative(s)

The below list has not been vetted in any way and may or may not contain alternatives;

• ansiterm
• anstyle
• console
• nu-ansi-term
• owo-colors
• stylish
• yansi

Dependency Specific Migration(s)

• structopt, clap2

[bsodmike]

Seems this is an issue with clap, which is used by structopt in many pingora crates

[[package]]
name = "clap"
version = "2.34.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a0610544180c38b88101fecf2dd634b174a62eef6946f84dfc6a7127512b381c"
dependencies = [
 "ansi_term",
 "atty",
 "bitflags 1.3.2",
 "strsim",
 "textwrap 0.11.0",
 "unicode-width",
 "vec_map",
]