Auto merge of #24150 - atouchet:tidy, r=jdm

Update servo-tidy

<!-- Please describe your changes on the following line: -->
These crates are no longer being used or using rand.

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [ ] `./mach build -d` does not report any errors
- [ ] `./mach test-tidy` does not report any errors
- [ ] These changes fix #___ (GitHub issue number if applicable)

<!-- Either: -->
- [ ] There are tests for these changes OR
- [ ] These changes do not require tests because ___

<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->

<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->

<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/24150)
<!-- Reviewable:end -->

servo-tidy.toml

@@ -15,17 +15,12 @@ lint-scripts = [
 [blocked-packages]
 num = []
 rand = [
-  "crossbeam-channel", # Used to initialize a thread-local
   "gaol",
   "hashglobe", # Only used in tests
   "ipc-channel",
-  "multipart",
-  "parking_lot_core",
   "phf_generator",
   "servo_rand",
-  "smithay-client-toolkit",
   "tempfile",
-  "tungstenite",
   "tokio-threadpool",
   "uuid",
   "ws",