chore(deps): Bump proc-macro2 from 1.0.59 to 1.0.60 (vectordotdev#17643)

Bumps [proc-macro2](https://github.com/dtolnay/proc-macro2) from 1.0.59
to 1.0.60.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/dtolnay/proc-macro2/commit/549377bc50460274d55aa1fd022f05c1d5d8472f"><code>549377b</code></a>
Release 1.0.60</li>
<li><a
href="https://github.com/dtolnay/proc-macro2/commit/bbb6bb888663b94f639ab1d0d53b9e63c9d788f0"><code>bbb6bb8</code></a>
Merge pull request <a
href="https://redirect.github.com/dtolnay/proc-macro2/issues/391">#391</a>
from dtolnay/nobeforeafter</li>
<li><a
href="https://github.com/dtolnay/proc-macro2/commit/e31d61910049e097afdd3d27c37786309082bdcb"><code>e31d619</code></a>
Delete use of proc_macro::Span::before/after</li>
<li><a
href="https://github.com/dtolnay/proc-macro2/commit/528e7610eb1e3a1b4f829897f6ab019c8c88d7db"><code>528e761</code></a>
Ignore missing_fields_in_debug clippy lint for Ident</li>
<li>See full diff in <a
href="https://github.com/dtolnay/proc-macro2/compare/1.0.59...1.0.60">compare
view</a></li>
</ul>
</details>
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