feat: check blob data availability #2898

Job	Run time
Lint	2m 1s
Download Beacon Node OAPI	4s
Download spectests	10s
Build native libraries	19s
Start and stop the node	3m 54s
Test	4m 12s
Build project	4m 25s
Run spec-tests (capella, minimal)	7m 52s
Run spec-tests (capella, general)	4m 58s
Run spec-tests (capella, mainnet)	7m 3s
Run spec-tests (deneb, minimal)	8m 4s
Run spec-tests (deneb, general)	5m 10s
Run spec-tests (deneb, mainnet)	6m 57s
All spec-tests passed	1s
	55m 10s

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