feat: check blob data availability #2893

Job	Run time
Download Beacon Node OAPI	4s
Download spectests	7s
Lint	1m 42s
Build native libraries	13s
Build project	4m 18s
Start and stop the node	4m 12s
Run spec-tests (capella, minimal)	7m 55s
Test	3m 51s
Run spec-tests (capella, general)	4m 55s
Run spec-tests (capella, mainnet)	6m 50s
Run spec-tests (deneb, minimal)	8m 5s
Run spec-tests (deneb, general)	5m 49s
Run spec-tests (deneb, mainnet)	7m 9s
All spec-tests passed	1s
	55m 11s

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