Fix builder API headers #20319

Job	Run time
Check for 'skip-ci' label	1s
check-code	14m 26s
check-msrv	5m 23s
lockbud	14m 36s
target-branch-check	1s
release-tests-ubuntu	26m 50s
op-pool-tests	17m 38s
beacon-chain-tests	23m 31s
debug-tests-ubuntu	5m 35s
network-tests	18m 26s
release-tests-windows	39m 9s
slasher-tests	3m 36s
state-transition-vectors-ubuntu	2m 38s
basic-simulator-ubuntu	18m 34s
cargo-sort	29s
cargo-udeps	7m 33s
cli-check	11m 14s
compile-with-beta-compiler	15m 0s
ef-tests-ubuntu	11m 55s
execution-engine-integration-ubuntu	11m 58s
fallback-simulator-ubuntu	16m 23s
test-suite-success	0s
	4h 24m 56s

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