refactor(l2): rewrite deployer and system contracts updater bins

[ilitteri]

Motivation

• L2: deprecate config files in favour of ethrex CLI flags #2380
• L2: Replace deployer config with a deployer CLI #2609

Description

• Adds CLI options for the contract deployer bin and the system contracts updater bin (removing the need of a config file).
• Updates the L2 Makefile.
• Updates the Docker Compose files.
• Updates the pr-main_l2 workflow.
• Updates the L2 integration test.
• Removes the sequencer_config_example.toml since it is not needed anymore.
• Refactors the crates/l2/contracts module
  • Renames the crate from ethrex-l2_deployer to ethrex-l2_contracts.
  • Adds a bin module with the bins ethrex_l2_l1_deployer and ethrex_l2_system_contracts_updater.
  • All the SDK-related logic was moved to the SDK lib.
• Cleans up the logic related to the config and toml parsing since now the only bin relying on the config is the Prover. Everything relative to the sequencer was removed, and now it is "hardcoded" for the Prover.

Closes #2609.

[github-actions]

Lines of code report

Total lines added: 934
Total lines removed: 173
Total lines changed: 1107

Detailed view

+------------------------------------------------------------------+-------+------+
| File                                                             | Lines | Diff |
+------------------------------------------------------------------+-------+------+
| ethrex/crates/l2/contracts/bin/deployer/cli.rs                   | 228   | +228 |
+------------------------------------------------------------------+-------+------+
| ethrex/crates/l2/contracts/bin/deployer/error.rs                 | 32    | +32  |
+------------------------------------------------------------------+-------+------+
| ethrex/crates/l2/contracts/bin/deployer/main.rs                  | 430   | +430 |
+------------------------------------------------------------------+-------+------+
| ethrex/crates/l2/contracts/bin/system_contracts_updater/cli.rs   | 21    | +21  |
+------------------------------------------------------------------+-------+------+
| ethrex/crates/l2/contracts/bin/system_contracts_updater/error.rs | 13    | +13  |
+------------------------------------------------------------------+-------+------+
| ethrex/crates/l2/contracts/bin/system_contracts_updater/main.rs  | 34    | +34  |
+------------------------------------------------------------------+-------+------+
| ethrex/crates/l2/sdk/src/sdk.rs                                  | 390   | +176 |
+------------------------------------------------------------------+-------+------+
| ethrex/crates/l2/utils/config/mod.rs                             | 83    | -38  |
+------------------------------------------------------------------+-------+------+
| ethrex/crates/l2/utils/config/toml_parser.rs                     | 80    | -135 |
+------------------------------------------------------------------+-------+------+

[ManuelBilbao]

Looks very nice overall