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Add a `mach update-pub-domains` command that update the public domain list used by servo.
Replace the Vec matching with a HashSet which is way quicker.
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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#11216
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- [X] There are tests for these changes OR
- [ ] These changes do not require tests because _____
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Source-Repo: https://github.com/servo/servo
Source-Revision: 4dbba2dcabbde11b01a95078ba75742aff3fc44d
Florian Duraffourg