Update docker base image 1.81 #11563

Job	Run time
benchmark-test	7m 34s
check-outdated-cli-md	1m 35s
default-features-and-witty-integration-test	22m 13s
execution-wasmtime-test	1m 9s
remote-net-test	18m 15s
wasm-application-test	10m 28s
ethereum-tests	6m 52s
lint-cargo-fmt	21s
lint-cargo-machete	22s
storage-service-tests	22m 10s
lint-unexpected-chain-load-operations	4s
lint-check-copyright-headers	17s
web	4m 3s
lint-cargo-clippy	11m 19s
lint-cargo-doc	4m 1s
lint-cargo-sort	23s
lint-check-all-features	23m 8s
lint-check-for-outdated-readme	33s
lint-check-linera-service-graphql-schema	1m 5s
lint-wasm-applications	3m 38s
	2h 19m 30s

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