Update Rust crate tiktoken-rs to 0.6.0 (#21900)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [tiktoken-rs](https://redirect.github.com/zurawiki/tiktoken-rs) |
workspace.dependencies | minor | `0.5.9` -> `0.6.0` |

---

### Release Notes

<details>
<summary>zurawiki/tiktoken-rs (tiktoken-rs)</summary>

###
[`v0.6.0`](https://redirect.github.com/zurawiki/tiktoken-rs/releases/tag/v0.6.0)

[Compare
Source](https://redirect.github.com/zurawiki/tiktoken-rs/compare/v0.5.9...v0.6.0)

**Minor version release signifies a breaking change in 0.x**

#### What's Changed

- Add support for chatgpt-4o-latest by
[@&#8203;Congyuwang](https://redirect.github.com/Congyuwang) in
[https://github.com/zurawiki/tiktoken-rs/pull/85](https://redirect.github.com/zurawiki/tiktoken-rs/pull/85)
- Refactor internals to make future updates to tiktoken easier to merge
-   Do not expose tiktoken internal modules and functions
-   Update dependencies

#### New Contributors

- [@&#8203;Congyuwang](https://redirect.github.com/Congyuwang) made
their first contribution in
[https://github.com/zurawiki/tiktoken-rs/pull/85](https://redirect.github.com/zurawiki/tiktoken-rs/pull/85)

**Full Changelog**:
https://github.com/zurawiki/tiktoken-rs/compare/v0.5.9...v0.6.0

</details>

---

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---

Release Notes:

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Cargo.lock

@@ -4429,12 +4429,13 @@ checksum = "2acce4a10f12dc2fb14a218589d4f1f62ef011b2d0cc4b3cb1bba8e94da14649"
 
 [[package]]
 name = "fancy-regex"
-version = "0.12.0"
+version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7493d4c459da9f84325ad297371a6b2b8a162800873a22e3b6b6512e61d18c05"
+checksum = "531e46835a22af56d1e3b66f04844bed63158bc094a628bec1d321d9b4c44bf2"
 dependencies = [
  "bit-set 0.5.3",
- "regex",
+ "regex-automata 0.4.9",
+ "regex-syntax 0.8.5",
 ]
 
 [[package]]
@@ -12956,16 +12957,17 @@ dependencies = [
 
 [[package]]
 name = "tiktoken-rs"
-version = "0.5.9"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c314e7ce51440f9e8f5a497394682a57b7c323d0f4d0a6b1b13c429056e0e234"
+checksum = "44075987ee2486402f0808505dd65692163d243a337fc54363d49afac41087f6"
 dependencies = [
  "anyhow",
  "base64 0.21.7",
  "bstr",
- "fancy-regex 0.12.0",
+ "fancy-regex 0.13.0",
  "lazy_static",
  "parking_lot",
+ "regex",
  "rustc-hash 1.1.0",
 ]
 

Cargo.toml

@@ -472,7 +472,7 @@ sys-locale = "0.3.1"
 sysinfo = "0.31.0"
 tempfile = "3.9.0"
 thiserror = "1.0.29"
-tiktoken-rs = "0.5.9"
+tiktoken-rs = "0.6.0"
 time = { version = "0.3", features = [
     "macros",
     "parsing",