Fix Sse client api #19346

Job	Run time
Check for 'skip-ci' label	1s
check-code	10m 51s
check-msrv	5m 36s
lockbud	13m 50s
target-branch-check	2s
release-tests-ubuntu	32m 15s
op-pool-tests	20m 2s
beacon-chain-tests	20m 48s
release-tests-windows	38m 5s
basic-simulator-ubuntu	20m 18s
debug-tests-ubuntu	9m 37s
ef-tests-ubuntu	7m 38s
execution-engine-integration-ubuntu	10m 50s
fallback-simulator-ubuntu	18m 21s
network-tests	23m 16s
slasher-tests	4m 4s
state-transition-vectors-ubuntu	7m 21s
cargo-udeps	7m 31s
cli-check	13m 10s
compile-with-beta-compiler	16m 19s
test-suite-success	4s
	4h 39m 59s

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