Bump ls-qpack from a9fd921 to 45cc951

Bumps [ls-qpack](https://github.com/litespeedtech/ls-qpack) from `a9fd921` to `45cc951`.
- [Release notes](https://github.com/litespeedtech/ls-qpack/releases)
- [Commits](litespeedtech/ls-qpack@a9fd921...45cc951)

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

Signed-off-by: dependabot[bot] <[email protected]>