fix: Epochstorage migrator hot fix

[oren-lava]

Description

Closes: #XXXX

The fix included a small migrator fix and adding old deleted migrators back to our code

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Author Checklist

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I have...

• read the contribution guide
• included the correct type prefix in the PR title, you can find examples of the prefixes below:
• confirmed ! in the type prefix if API or client breaking change
• targeted the main branch
• provided a link to the relevant issue or specification
• reviewed "Files changed" and left comments if necessary
• included the necessary unit and integration tests
• updated the relevant documentation or specification, including comments for documenting Go code
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• confirmed the correct type prefix in the PR title
• confirmed all author checklist items have been addressed
• reviewed state machine logic, API design and naming, documentation is accurate, tests and test coverage

[github-actions]

Test Results

2 167 tests  ±0   2 167 ✅ ±0   25m 11s ⏱️ -56s
  144 suites +1       0 💤 ±0 
    7 files   ±0       0 ❌ ±0 

Results for commit 535dc18. ± Comparison against base commit 1bd1d53.