bug(fill): fill fails on filesystems with ecryptfs

[danceratopz]

The filename generated by the --evm-dump-dir feature is too long to write to an ext4 filesystem with ecryptfs:

E   OSError: [Errno 36] File name too long: '/home/dtopz/code/github/danceratopz/eest/logs/evm/cancun__eip4844_blobs__test_blob_txs__test_insufficient_balance_blob_tx/fork_Cancun_blockchain_test__exact_balance_minus_1_tx_max_fee_per_blob_gas_multiplier_1_no_calldata_tx_value_0_tx_max_priority_fee_per_gas_0_tx_max_fee_per_gas_7_no_access_list'

As of #999 --evm-dump-dir is enabled by default.