Revisit RPC error handling

[YaroShkvorets]

Right now we retry a few times and then store the errors in the database.
Need to properly distinguish deterministic errors from non-deterministic and always retry non-deterministic errors.

[DenisCarriere]

SQL statement to query errors:

SELECT
    error,
    count()
FROM metadata_errors
GROUP BY error

[DenisCarriere]

BSC has a lot of "self destruct" contracts

SELECT
    error,
    count()
FROM metadata_errors
GROUP BY error

Query id: 10683ed7-521c-4b00-a30a-262160ad3e10

   ┌─error──────────────────────────────────────────────────────────────────────────────────┬─count()─┐
1. │ RPC error 3: execution reverted: Contract does not have fallback nor receive functions │       3 │
2. │ RPC error 3: execution reverted: Proxy is out-of-service right now                     │       2 │
3. │ RPC error 3: execution reverted: Invalid asset.                                        │       1 │
4. │ missing decimals()                                                                     │       2 │
5. │ self-destructed contract                                                               │    4702 │
6. │ RPC error 3: execution reverted                                                        │      49 │
   └────────────────────────────────────────────────────────────────────────────────────────┴─────────┘