fix(abigen): use lib for parsing paths correctly in windows

Cargo.lock

@@ -1161,6 +1161,7 @@ dependencies = [
  "Inflector",
  "anyhow",
  "cfg-if 1.0.0",
+ "dunce",
  "ethers-core",
  "getrandom 0.2.3",
  "hex",

ethers-contract/ethers-contract-abigen/Cargo.toml

@@ -24,6 +24,7 @@ hex = { version = "0.4.2", default-features = false, features = ["std"] }
 reqwest = { version = "0.11.3", default-features = false, features = ["blocking"] , optional = true }
 once_cell = "1.8.0"
 cfg-if = "1.0.0"
+dunce = "1.0.2"
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 # NOTE: this enables wasm compatibility for getrandom indirectly

ethers-contract/ethers-contract-abigen/src/source.rs

@@ -229,7 +229,7 @@ fn get_local_contract(path: impl AsRef<str>) -> Result<String> {
         let root = Path::new(&manifest_path);
         let mut contract_path = root.join(&path);
         if !contract_path.exists() {
-            contract_path = path.canonicalize()?;
+            contract_path = dunce::canonicalize(&path)?;
         }
         if !contract_path.exists() {
             anyhow::bail!("Unable to find local contract \"{}\"", path.display())