feat: check blob data availability #2904

Job	Run time
Lint	1m 48s
Download spectests	8s
Download Beacon Node OAPI	5s
Build native libraries	18s
Start and stop the node	3m 56s
Build project	4m 29s
Test	3m 21s
Run spec-tests (capella, minimal)	7m 34s
Run spec-tests (capella, general)	4m 51s
Run spec-tests (capella, mainnet)	7m 6s
Run spec-tests (deneb, minimal)	8m 19s
Run spec-tests (deneb, general)	4m 55s
Run spec-tests (deneb, mainnet)	6m 59s
All spec-tests passed	1s
	53m 50s

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