fix(sequencer): Send layer-2 transaction

[RomanHodulak]

Ticket

• Related Linear Ticket: SEQ-210

What does this PR do?

• Summary: Implements all needed changes to make sending layer-2 transactions possible.
• Key Changes:
  • Setup RPC client for building transactions
  • Fills L2 transaction with values
  • Changes contract calls to send transaction and wait

Does this PR introduce any breaking changes (API/schema)?

• No

Do any environment variables need to be updated or added before deployment?

• No

How can this PR be tested?

In one terminal, run the sequencer

just -f .devcontainer/justfile op-up
just -f .devcontainer/justfile op-update-chain-address
cargo make interceptor

In another terminal, send transaction

curl -X POST http://localhost:8456 --header 'Content-Type: application/json' --data '{"jsonrpc":"2.0","method":"eth_sendRawTransaction","params":["0xb85902f85682038501808088ffffffffffffffff808080c001a0d555dc3a308d5bde3d5bc665796f9e7d7125c1554667325533fe237c1aa120b5a07d97dae06082d3eb7fa8966b33f6ce51d7127dcddd5da3d8be9c448a72150a90"],"id":1}'

You will get a response containing L2 transaction hash.

[linear]

SEQ-210 Integration testing via dev container

When SEQ-175 is mostly complete and the full stack is stood up with all parts communicating successfully, we need to test that the sequencer's send_raw_transaction() flow.

AC

• Stand up dev container and submit an L3 transaction to the sequencer. Transaction should be forwarded to the L2 smart contract
  • Variations on the L3 txn including edge cases and large ones that need to be chunked up
• (Nice to have) Crystallize the above with a CI test - dependent on SEQ-140

[daniilrrr]

lgtm!

[WillPapper]

Thank you @RomanHodulak! This looks great