Bad publishing on sepolia v34

[wmitsuda]

this is about: https://github.com/erigontech/erigon-snapshot/pull/1075/changes

2 things happened here and need to be addressed:

• it published 2 accounts.0-256.vi files -> I suspect this is due to recent bump (unrelated to the step size conversion which only do renames) + combination of forced index regeneration during publishing. I'm going to investigate that.
• there should be some integrity check to prevent that; it didn't, and the PR was opened. Need to create a check to block multiple versions from the same range. Not only it was published, but that lead to a new sync to download both and as expected my node went broke.

[wmitsuda]

+need to fix v34 sepolia snapshotter...