fix(l2): fix l2 integration test job

[xqft]

Motivation

This was failing on multiple PRs because the ethrex_dev image was not being built.

The difference between the failing job and the others (which were succeeding) is the runner (larger_runners). Maybe that has something to do with it.

Description

• adds a step to build ethrex_dev explicitly

[github-actions]

Lines of code report

Total lines added: 9
Total lines removed: 34
Total lines changed: 43

Detailed view

+----------------------------------------------------+-------+------+
| File                                               | Lines | Diff |
+----------------------------------------------------+-------+------+
| ethrex/cmd/ethrex/bench/import_blocks_benchmark.rs | 32    | -3   |
+----------------------------------------------------+-------+------+
| ethrex/cmd/ethrex/decode.rs                        | 72    | +4   |
+----------------------------------------------------+-------+------+
| ethrex/cmd/ethrex/networks.rs                      | 92    | +1   |
+----------------------------------------------------+-------+------+
| ethrex/cmd/ethrex/utils.rs                         | 148   | +4   |
+----------------------------------------------------+-------+------+
| ethrex/crates/common/types/genesis.rs              | 653   | -31  |
+----------------------------------------------------+-------+------+

[Copilot]

Pull Request Overview

This PR addresses intermittent failures in the L2 integration test workflow by explicitly building the ethrex_dev Docker image before deploying L1 contracts.

• Adds a dedicated step to build the ethrex_dev image
• Retains existing deploy step under L2

Comments suppressed due to low confidence (2)

.github/workflows/pr-main_l2.yaml:83

• [nitpick] The step name is generic—consider renaming it to Build ethrex_dev Docker image for clarity.

      - name: Build L1 docker image

.github/workflows/pr-main_l2.yaml:81

• [nitpick] This comment describes a workaround—consider adding a linked issue or TODO to track the root cause and remove the workaround once addressed.

      # for some reason the "Start L1 & Deploy contracts" step does not build the ethrex_dev image, used