feat: add ssz support to builder api (#7180) #20507

Job	Run time
Build	1m 42s
Build	1m 42s
Build	1m 42s
Mixed clients sim tests	9m 16s
Mixed clients sim tests	9m 16s
Mixed clients sim tests	9m 16s
Endpoint sim tests	2m 53s
Endpoint sim tests	3m 44s
Endpoint sim tests	3m 44s
Eth backup provider sim tests	8m 6s
Eth backup provider sim tests	8m 6s
Eth backup provider sim tests	8m 6s
Deneb sim tests	6m 42s
Deneb sim tests	6m 42s
Deneb sim tests	6m 42s
Multifork sim test	12m 37s
Multifork sim test	13m 58s
Multifork sim test	11m 38s
	2h 5m 52s

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