chore(l2): add help for tdx failure jobs

[tomip01]

Motivation

We want to show a quick fix for building the tdx prover

[Copilot]

Pull Request Overview

This PR adds a helpful error message to TDX prover build jobs that provides guidance when the build fails. The message instructs developers to run make update-cargo-lock from the project root as a potential fix.

Key Changes:

• Added fallback help message to make image.raw command in TDX build workflows to assist with troubleshooting build failures

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
.github/workflows/pr-main_l2_tdx_build.yaml	Added help message to make image.raw command that displays when the build fails
.github/workflows/pr-main_l2.yaml	Attempted to add help message but incorrectly attached it to the cd command instead of make image.raw

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[JereSalo]

If make image.raw fails, the echo command runs, and the entire step still returns success. The step will NOT fail the GitHub Actions job.

[JereSalo]

Suggestion: make image.raw || { echo "..."; exit 1; }

[tomip01]

Suggestion: make image.raw || { echo "..."; exit 1; }

Done here 311491b

[JereSalo]

great job