Initial server-side session ticket support #206

Job	Run time
Clang Tidy	12s
Clippy	50s
Build+test (stable, ubuntu-24.04)	2m 17s
Clippy nightly (optional)	33s
Build+test (stable, ubuntu-22.04)	1m 52s
Check for documentation errors	50s
Format	11s
Build+test (beta, ubuntu-24.04)	1m 49s
Miri	1m 13s
Build+test (beta, ubuntu-22.04)	2m 6s
Packaging	2m 40s
Build+test (nightly, ubuntu-24.04)	1m 47s
Valgrind	2m 47s
Build+test (nightly, ubuntu-22.04)	2m 18s
	21m 25s

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