Update Rust crate proc-macro2 to v1.0.95 (#28917)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [proc-macro2](https://redirect.github.com/dtolnay/proc-macro2) |
workspace.dependencies | patch | `1.0.94` -> `1.0.95` |

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### Release Notes

<details>
<summary>dtolnay/proc-macro2 (proc-macro2)</summary>

###
[`v1.0.95`](https://redirect.github.com/dtolnay/proc-macro2/releases/tag/1.0.95)

[Compare
Source](https://redirect.github.com/dtolnay/proc-macro2/compare/1.0.94...1.0.95)

- Update semver-exempt API under
`RUSTFLAGS=--cfg=procmacro2_semver_exempt` to that of nightly-2025-04-16
([#&#8203;497](https://redirect.github.com/dtolnay/proc-macro2/issues/497))

</details>

---

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Release Notes:

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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
e18d787dbcrenovate[bot] committed on 4/18/2025, 5:30:22 PM· committed by GitHubparentd02c8bc
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