Bump ls-qpack from `b1c0410` to `ab94342` #564

Job	Run time
Build (ubuntu, openssl, static, Debug)	2m 50s
Build (ubuntu, openssl, static, Release)	3m 20s
Build (ubuntu, openssl, shared, Debug)	2m 44s
Build (ubuntu, openssl, shared, Release)	2m 51s
Build (ubuntu, openssl3, static, Debug)	2m 23s
Build (ubuntu, openssl3, static, Release)	2m 18s
Build (ubuntu, openssl3, shared, Debug)	2m 40s
Build (ubuntu, openssl3, shared, Release)	3m 35s
Build (windows, schannel, static, Debug)	3m 53s
Build (windows, schannel, static, Release)	3m 47s
Build (windows, schannel, shared, Debug)	4m 0s
Build (windows, schannel, shared, Release)	3m 53s
Build (windows, openssl, static, Debug)	4m 45s
Build (windows, openssl, static, Release)	5m 27s
Build (windows, openssl, shared, Debug)	4m 45s
Build (windows, openssl, shared, Release)	5m 39s
Build (windows, openssl3, static, Debug)	5m 51s
Build (windows, openssl3, static, Release)	5m 54s
Build (windows, openssl3, shared, Debug)	5m 58s
Build (windows, openssl3, shared, Release)	5m 52s
Build Complete	8s
	1h 22m 33s

Provide feedback