Bump third_party/libwebsockets/repo from ec6d5ac to 7ef2065 (#29429)

Bumps [third_party/libwebsockets/repo](https://github.com/warmcat/libwebsockets) from `ec6d5ac` to `7ef2065`.
- [Commits](warmcat/libwebsockets@ec6d5ac...7ef2065)

---
updated-dependencies:
- dependency-name: third_party/libwebsockets/repo
  dependency-type: direct:production
...

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