Update Rust crate enum-iterator to v2 (#27498)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [enum-iterator](https://togithub.com/stephaneyfx/enum-iterator) | workspace.dependencies | major | `1.5.0` -> `2.0.0` |

---

### Release Notes

<details>
<summary>stephaneyfx/enum-iterator (enum-iterator)</summary>

### [`v2.1.0`](https://togithub.com/stephaneyfx/enum-iterator/compare/2.0.1...2.1.0)

[Compare Source](https://togithub.com/stephaneyfx/enum-iterator/compare/2.0.1...2.1.0)

### [`v2.0.1`](https://togithub.com/stephaneyfx/enum-iterator/compare/2.0.0...2.0.1)

[Compare Source](https://togithub.com/stephaneyfx/enum-iterator/compare/2.0.0...2.0.1)

### [`v2.0.0`](https://togithub.com/stephaneyfx/enum-iterator/compare/1.5.0...2.0.0)

[Compare Source](https://togithub.com/stephaneyfx/enum-iterator/compare/1.5.0...2.0.0)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - "on the first day of the month" in timezone America/Los_Angeles, 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.

---

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

---

This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View repository job log [here](https://developer.mend.io/github/get-convex/convex).

GitOrigin-RevId: aee13dbc63195522f231d46f8355034cb26e12cc

Author: renovate[bot]

Cargo.lock

@@ -52,7 +52,7 @@ governor = "0.6.0"
 headers = "0.3"
 hex = "0.4"
 home = "0.5"
-enum-iterator = "1.5.0"
+enum-iterator = "2.0.0"
 http = "0.2.8"
 http-cache = { version = "0.18", default-features = false }
 http-cache-reqwest = { version = "0.13.0", features = [ "manager-moka" ] }