Rename --subscribe-all-data-column-subnets to --supernode and make it visible in help

[jimmygchen]

Issue Addressed

Rename --subscribe-all-data-column-subnets to --supernode as it's now been officially accepted in the spec. Also make it visible in help in preparation for the fusaka release.

https://github.com/ethereum/consensus-specs/blob/dev/specs/fulu/p2p-interface.md#supernodes

[mergify]

Some required checks have failed. Could you please take a look @jimmygchen? 🙏

[pawanjay176]

LGTM. Would be good to get a ✅ from @barnabasbusa as well to make sure we aren't breaking any setups unexpectedly.

[mergify]

This pull request has been removed from the queue for the following reason: checks failed.

The merge conditions cannot be satisfied due to failing checks:

• ☑️ test-suite-success

You can check the last failing draft PR here: #8086.

You may have to fix your CI before adding the pull request to the queue again.
If you update this pull request, to fix the CI, it will automatically be requeued once the queue conditions match again.
If you think this was a flaky issue instead, you can requeue the pull request, without updating it, by posting a @mergifyio requeue comment.

[mergify]

This pull request has been removed from the queue for the following reason: checks failed.

The merge conditions cannot be satisfied due to failing checks:

• ☑️ test-suite-success

You can check the last failing draft PR here: #8087.

You may have to fix your CI before adding the pull request to the queue again.
If you update this pull request, to fix the CI, it will automatically be requeued once the queue conditions match again.
If you think this was a flaky issue instead, you can requeue the pull request, without updating it, by posting a @mergifyio requeue comment.

[jimmygchen]

@mergify requeue

[mergify]

requeue

✅ The queue state of this pull request has been cleaned. It can be re-embarked automatically

[mergify]

This pull request has been removed from the queue for the following reason: checks failed.

The merge conditions cannot be satisfied due to failing checks:

• ☑️ test-suite-success

You can check the last failing draft PR here: #8091.

You may have to fix your CI before adding the pull request to the queue again.
If you update this pull request, to fix the CI, it will automatically be requeued once the queue conditions match again.
If you think this was a flaky issue instead, you can requeue the pull request, without updating it, by posting a @mergifyio requeue comment.