chore: temporarily bump up github actions time-out

[danielntmd]

Currently github actions is stopping the scenario tests at 6 hours, we need to bump to 9 to run everything

• match aws shutdown time of 540 minutes for both ci3 and network test workflow.

[AztecBot]

Flakey Tests

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

\033FLAKED\033 (8;;http://ci.aztec-labs.com/d764326848c1ef5a�d764326848c1ef5a8;;�):  yarn-project/end-to-end/scripts/run_test.sh simple src/e2e_p2p/valid_epoch_pruned_slash.test.ts (395s) (code: 1) group:e2e-p2p-epoch-flakes (\033PhilWindle\033: chore: temporarily bump up github actions time-out  (#19918))