chore(clippy): fix bare urls in abigen

[georgewhewell]

Motivation

when running cargo doc on a project including Abigen'd files, the following warning is emitted:

warning: this URL is not a hyperlink
 --> src/bindings/uniswap_v2_pair.rs:8:85
  |
8 |     //!UniswapV2Pair was auto-generated with ethers-rs Abigen. More information at: https://github.com/gakonst/ethers-rs
  |                                                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://github.com/gakonst/ethers-rs>`
  |
  = note: bare URLs are not automatically turned into clickable links
  = note: `#[warn(rustdoc::bare_urls)]` on by default

Solution

use automatic link instead

PR Checklist

• Added Tests
• Added Documentation
• Updated the changelog
• Breaking changes

[mattsse]

ty