fix: rustup for i688

[luohoufu]

What does this PR do

This pull request updates the .github/workflows/release.yml file to refine the setup process for building the app across different target platforms. The most important change is the conditional logic added to handle platform-specific dependencies.

Workflow improvements:

• Updated the "Pizza engine features setup" step to include conditional logic for platform-specific dependency installation. For the i686-pc-windows-msvc target, it now adds the required Rust target using rustup. For other platforms, it runs make add-dep-pizza-engine-linux and adds the target using a nightly toolchain.

Rationale for this change

Standards checklist

• The PR title is descriptive
• The commit messages are semantic
• Necessary tests are added
• Updated the release notes
• Necessary documents have been added if this is a new feature
• Performance tests checked, no obvious performance degradation