build(deps): bump h2 from 0.3.21 to 0.3.26 in /runc #1516

Job	Run time
tests (vmm/sandbox, --all-features)	3m 42s
checks (vmm/sandbox, --all-features)	5m 9s
tests (vmm/task, --all-features)	3m 21s
checks (vmm/task, --all-features)	4m 35s
tests (shim, --all-features)	2m 31s
checks (shim, --all-features)	4m 10s
tests (quark, --all-features)	2m 22s
tests (runc, --all-features)	2m 59s
checks (quark, --all-features)	4m 13s
tests (wasm, --features=wasmedge, 0.13.5)	3m 10s
checks (runc, --all-features)	4m 34s
tests (wasm, --features=wasmtime)	3m 33s
checks (wasm, --features=wasmedge, 0.13.5)	4m 40s
checks (wasm, --features="wasmedge, wasmedge_wasi_nn", 0.13.5)	4m 45s
checks (wasm, --features=wasmtime)	4m 55s
	58m 39s

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