fix: snapshot incompatibility issue

[j75689]

Description

fix snapshot incompatibility issue

Rationale

fix the bug after merged #86.
The old snapshot can't be read because of the incompatible struct

{"timestamp":"2024-08-05T10:22:12.709821Z","level":"WARN","fields":{"message":"Failed to insert downloaded block","err":"Failed to insert block (hash=0xf037acb25c7a81cd261e441a9dfe177cd15821788b0e20a8b1135b743b00e13d, number=42710013, parent_hash=0x3dd2442edfb1222b27f2b3e5835174b2472e9d70cd759b15a65b7fdf3c314202): provider inner error: failed to decode a key from a table"},"target":"consensus::engine"}

Example

n/a

Changes

Notable changes:

• parlia/snapshot

Potential Impacts

• no