Limit the external dependencies to be used during the E2E testing (reuse oracle / block data)

[shimkiv]

Plan

• Run the o1vm once in default mode to generate the required configs and to fetch all the required external data;
• Execute the VM with the STOP_AT and SNAPSHOT_STATE_AT envars enabled;
  • O1VM_FLAVOR="pickles" STOP_AT="=10500000" SNAPSHOT_STATE_AT="=10000000" ./run-code.sh.
• Pack and publish the resulting data set into the GCP/AWS storage bucket or Docker Image;
• Implement the PreImageOracleT trait for OnDiskPreImageOracle to be used during the tests;
• Update codebase and configure CI to run the E2E tests with the "oracles" reuse.

[shimkiv]

Internal discussion thread.

[shimkiv]

The procedure was slightly changed but keeps the same idea.