Acceptance Test: Check custody count number is set in all components

[zilm13]

PR Description

I don't like tests by logs too, but it's the best thing we could have now to check all wiring is correctly set and remains correct after restart. The only thing we could check not by the logs is cgc in Metadata and I check it too.

UPDATE: It's not possible to test after restart part because persistence requires other CircleCI docker tier, see documentation. This part of tests was dropped.

UPDATE2: It was suggested to keep restart part code in tests, anyone could still run it locally + maybe GHA will solve Docker issue or any other update in used CI. The way I did it maybe not the best, so any suggestions are appreciated.

Fixed Issue(s)

Documentation

• I thought about documentation and added the doc-change-required label to this PR if updates are required.

Changelog

• I thought about adding a changelog entry, and added one if I deemed necessary.

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Note

Adds acceptance tests validating custody/sampling group counts (incl. super node) and metadata, plus DSL utilities for parallel waits, metadata fetch, persistence, and custody subnet config; also tweaks a debug log.

• Acceptance Tests:
  • Add DasCustodyCountAcceptanceTest verifying custody group count and sampling group count across validator, full, and super node setups, including checks after restart (gated by SKIP_RESTART) and cgc in Metadata.
• Test DSL Enhancements:
  • Node: add waitForAllInAnyOrder(...) to run multiple wait conditions concurrently.
  • TekuBeaconNode: add getMetadataMessage(SpecMilestone) to parse node identity metadata.
  • TekuNode: add withPersistentStore(Path) to mount a writable data directory for restart tests.
  • TekuNodeConfigBuilder: add withSubscribeAllCustodySubnetsEnabled() to set p2p-subscribe-all-custody-subnets-enabled.
• Networking:
  • Adjust debug log in DataColumnSidecarSubnetBackboneSubscriber (“Sampling group count...” message formatting).

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