feat(linter): Add `unused_trait` lint #5569

Job	Run time
Sanity checks	3m 33s
Run cargo tests (macos-latest, darwin, aarch64-apple-darwin, arm64)	4m 2s
Get Release Info	6s
Run cargo tests (ubuntu-22.04, linux, x86_64-unknown-linux-gnu, x64, glibc)	5m 36s
Run cargo tests (windows-latest, windows, x86_64-pc-windows-msvc, x64)	5m 6s
Build Clarinet Distributions (macos-latest, darwin, aarch64-apple-darwin, arm64)	4m 26s
Build Clarinet Distributions (ubuntu-22.04, linux, x86_64-unknown-linux-gnu, x64, glibc)	2m 56s
Build Clarinet Distributions (ubuntu-latest, linux, x86_64-unknown-linux-musl, x64, musl)	3m 6s
Build Clarinet Distributions (windows-latest, windows, x86_64-pc-windows-msvc, x64)	6m 23s
Build Clarinet Distributions (macos-latest, darwin, x86_64-apple-darwin, x64)	3m 54s
Release	-1s
	39m 7s

Provide feedback