fix(core): fix criterion benchmark

[iovoid]

Motivation

On #2419 the criterion benchmark was broken printing extra lines, which causes the parser to fai.

Description

Replaces println!() with info!() on the non-user-interactive path.

[github-actions]

Lines of code report

Total lines added: 416
Total lines removed: 0
Total lines changed: 416

Detailed view

+-------------------------------------------+-------+------+
| File                                      | Lines | Diff |
+-------------------------------------------+-------+------+
| ethrex/cmd/ethrex_l2/src/cli.rs           | 50    | +3   |
+-------------------------------------------+-------+------+
| ethrex/cmd/ethrex_l2/src/commands/mod.rs  | 7     | +1   |
+-------------------------------------------+-------+------+
| ethrex/cmd/ethrex_l2/src/commands/test.rs | 412   | +412 |
+-------------------------------------------+-------+------+