Do not canonicalize the exe-candidate at all

And here is why: #9991 (comment)

crates/cargo-util/src/paths.rs

@@ -123,41 +123,13 @@ pub fn resolve_executable(exec: &Path) -> Result<PathBuf> {
         });
         for candidate in candidates {
             if candidate.is_file() {
-                // PATH may have a component like "." in it, so we still need to
-                // canonicalize.
-                // Only do so if there are relative path components
-                let has_relative_path_components = candidate.components().any(|c| {
-                    matches!(
-                        c,
-                        std::path::Component::ParentDir | std::path::Component::CurDir
-                    )
-                });
-                return Ok(if has_relative_path_components {
-                    // Assure symlinks to programs like 'echo' don't change the file-name after resolution.
-                    // root program like 'coreutils' which relies on the executable name for proper function.
-                    let file_name = candidate
-                        .file_name()
-                        .expect("executables have a file name")
-                        .to_owned();
-                    let candidate = candidate
-                        .canonicalize()?
-                        .parent()
-                        .expect("a parent is always available for tools called in test-suite")
-                        .join(file_name)
-                        .to_owned();
-                    if !candidate.is_file() {
-                        continue;
-                    }
-                    candidate
-                } else {
-                    candidate
-                });
+                return Ok(candidate);
             }
         }
 
         anyhow::bail!("no executable for `{}` found in PATH", exec.display())
     } else {
-        Ok(exec.canonicalize()?)
+        Ok(exec.into())
     }
 }