insta: Compile with opt-level = 3 (#9978)

see https://insta.rs/docs/quickstart/#optional-faster-runs

Author: Turbo87

Cargo.toml

@@ -29,6 +29,10 @@ todo = "warn"
 [lints]
 workspace = true
 
+[profile.dev.package]
+insta.opt-level = 3
+similar.opt-level = 3
+
 [profile.release]
 opt-level = 2