Fix clippy lints

[vedhavyas]

Pull Request Summary
A small change set to fix the clippy lints.
There is one more warning

warning: lint `clippy::clone_double_ref` has been renamed to `suspicious_double_ref_op`
  |
  = help: use the new name `suspicious_double_ref_op`
  = note: requested on the command line with `-A clippy::clone_double_ref`
  = note: `#[warn(renamed_and_removed_lints)]` on by default

Mostly coming from upstream I think since I couldn't find it in our repo.

Check list

• added or updated unit tests
• updated Astar official documentation
• added OnRuntimeUpgrade hook for precompile revert code registration
• added benchmarks & weights for any modified runtime logics.

[ipapandinas]

LGTM