Update Rust crate syn to v2.0.110 (#21357)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [syn](https://redirect.github.com/dtolnay/syn) |
workspace.dependencies | patch | `2.0.108` -> `2.0.110` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Release Notes

<details>
<summary>dtolnay/syn (syn)</summary>

###
[`v2.0.110`](https://redirect.github.com/dtolnay/syn/releases/tag/2.0.110)

[Compare
Source](https://redirect.github.com/dtolnay/syn/compare/2.0.109...2.0.110)

- Tweaks to improve build speed
([#&#8203;1939](https://redirect.github.com/dtolnay/syn/issues/1939),
thanks [@&#8203;dishmaker](https://redirect.github.com/dishmaker))
- Make `syn::ext::IdentExt::unraw` available without "parsing" feature
([#&#8203;1940](https://redirect.github.com/dtolnay/syn/issues/1940))
- Support parsing `syn::Meta` followed by `=>`
([#&#8203;1944](https://redirect.github.com/dtolnay/syn/issues/1944))

###
[`v2.0.109`](https://redirect.github.com/dtolnay/syn/releases/tag/2.0.109)

[Compare
Source](https://redirect.github.com/dtolnay/syn/compare/2.0.108...2.0.109)

- Tweaks to improve build speed
([#&#8203;1927](https://redirect.github.com/dtolnay/syn/issues/1927),
[#&#8203;1928](https://redirect.github.com/dtolnay/syn/issues/1928),
[#&#8203;1930](https://redirect.github.com/dtolnay/syn/issues/1930),
[#&#8203;1932](https://redirect.github.com/dtolnay/syn/issues/1932),
[#&#8203;1934](https://redirect.github.com/dtolnay/syn/issues/1934),
thanks [@&#8203;dishmaker](https://redirect.github.com/dishmaker))

</details>

---

### Configuration

📅 **Schedule**: Branch creation - "before 4am on Monday" (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/ruff).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0MS4xNTkuNCIsInVwZGF0ZWRJblZlciI6IjQxLjE1OS40IiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJpbnRlcm5hbCJdfQ==-->

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

Cargo.lock

@@ -3927,9 +3927,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.108"
+version = "2.0.110"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da58917d35242480a05c2897064da0a80589a2a0476c9a3f2fdc83b53502e917"
+checksum = "a99801b5bd34ede4cf3fc688c5919368fea4e4814a4664359503e6015b280aea"
 dependencies = [
  "proc-macro2",
  "quote",