tests: add insta for snapshot testing #2071

Job	Run time
Code coverage	3m 6s
Rustfmt	6s
Integration tests (macos-latest)	1m 47s
Clippy	46s
Integration tests (ubuntu-latest)	2m 5s
Unit tests (macos-latest, aarch64-apple-darwin, false)	2m 28s
Unit tests (macos-12, x86_64-apple-darwin, false)	4m 6s
Unit tests (windows-latest, x86_64-pc-windows-msvc, false)	6m 25s
Unit tests (ubuntu-latest, x86_64-unknown-linux-gnu, false)	2m 21s
Unit tests (ubuntu-latest, x86_64-unknown-linux-musl, true)	3m 3s
Unit tests (ubuntu-latest, i686-unknown-linux-gnu, true)	2m 55s
Unit tests (ubuntu-latest, arm-unknown-linux-gnueabihf, true)	2m 51s
Unit tests (ubuntu-latest, aarch64-unknown-linux-gnu, true)	3m 0s
	34m 59s

Provide feedback