make thiserror a workspace dependency everywhere else

Cargo.toml

@@ -76,7 +76,7 @@ futures-util = { version = "0.3", default-features = false }
 rustc-hash = "1.1.0"
 wasm-bindgen = "0.2.87"
 html_parser = "0.7.0"
-thiserror = "1.0.30"
+thiserror = "1.0.40"
 
 # This is a "virtual package"
 # It is not meant to be published, but is used so "cargo run --example XYZ" works properly