Use fake_runtime_api to simplify node code #9007

Job	Run time
sequentialise	2s
fmt	1m 12s
set-condition	7s
tee-check	22m 20s
parachain-clippy	16m 54s
parachain-build-dev	55m 24s
omni-executor-check	0s
identity-build	2m 3s
omni-executor-build	1m 14s
parachain-unit-test	7m 54s
parachain-runtime-test	23m 34s
litentry	24m 26s
lit-di-identity-test	20m 20s
paseo	23m 56s
lit-dr-vc-test	10m 3s
omni-test	1m 15s
lit-parentchain-nonce	7m 8s
${{ matrix.test_name }}	0s
lit-test-failed-parentchain-extrinsic	9m 38s
lit-omni-account-test	14m 2s
lit-native-request-vc-test	12m 38s
push-docker	0s
	4h 14m 10s

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