Update Rust crate proc-macro2 to v1.0.106 (#17921)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [proc-macro2](https://redirect.github.com/dtolnay/proc-macro2) |
workspace.dependencies | patch | `1.0.105` → `1.0.106` |

---

### Release Notes

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

###
[`v1.0.106`](https://redirect.github.com/dtolnay/proc-macro2/releases/tag/1.0.106)

[Compare
Source](https://redirect.github.com/dtolnay/proc-macro2/compare/1.0.105...1.0.106)

- Optimize `Span::byte_range`
([#&#8203;530](https://redirect.github.com/dtolnay/proc-macro2/issues/530))

</details>

---

### Configuration

📅 **Schedule**: Branch creation - Between 12:00 AM and 03:59 AM, only on
Monday ( * 0-3 * * 1 ) (UTC), Automerge - At any time (no schedule
defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
log](https://developer.mend.io/github/astral-sh/uv).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0Mi45NS4yIiwidXBkYXRlZEluVmVyIjoiNDIuOTUuMiIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOlsiYnVpbGQ6c2tpcC1yZWxlYXNlIiwiaW50ZXJuYWwiXX0=-->

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Cargo.lock

@@ -3387,9 +3387,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.105"
+version = "1.0.106"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "535d180e0ecab6268a3e718bb9fd44db66bbbc256257165fc699dadf70d16fe7"
+checksum = "8fd00f0bb2e90d81d1044c2b32617f68fcb9fa3bb7640c23e9c748e53fb30934"
 dependencies = [
  "unicode-ident",
 ]