chore: update deployment configurations and environment variables for testnet

[ludamad]

Summary

• Update deployment configurations and environment variables for testnet
• Update expected hashes in mainnet compatibility test

Forward-port from mitch/deploy-testnet-v3 (origin/v3..mitch/deploy-testnet-v3)

[AztecBot]

Flakey Tests

🤖 says: This CI run detected 1 tests that failed, but were tolerated due to a .test_patterns.yml entry.

\033FLAKED\033 (\0338;;http://ci.aztec-labs.com/0857e67c6306fe19�0857e67c6306fe198;;�\033):  yarn-project/end-to-end/scripts/run_test.sh simple src/e2e_p2p/multiple_validators_sentinel.parallel.test.ts "collects attestations for validators in proposer node when block is not published" (116s) (code: 1) group:e2e-p2p-epoch-flakes (\033ludamad\033: chore: update deployment configurations and environment variables for testnet)