Bump ls-qpack from 1bb5285 to 778b53d (#224)

Bumps [ls-qpack](https://github.com/litespeedtech/ls-qpack) from `1bb5285` to `778b53d`.
- [Release notes](https://github.com/litespeedtech/ls-qpack/releases)
- [Commits](litespeedtech/ls-qpack@1bb5285...778b53d)

---
updated-dependencies:
- dependency-name: ls-qpack
  dependency-type: direct:production
...

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