🔧 Improvements Summary

This PR introduces three improvements focused on safety, maintainability, and readability of the GitHub Actions workflow.

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1. Define Global Environment Variable

Before:

Environment variable CURRENT_SDK was defined repeatedly in multiple steps.

After:

Declared in gloabally one time.

Why This Matters:

• Eliminates duplication across steps.
• Makes it easier to update or remove the variable in the future.
• Still allows per-step override when necessary.

2. Fix Unsafe Shell Conditional on inputs.release

• Using [[ ... ]] instead of [ ... ] for conditionals.
• Adding double quotes around inputs and refs to avoid evaluation issues.
  PREVIOUSLY FIXED Containerization project. https://github.com/apple/containerization/pull/68

3. Removed EXCLUSION AND TODO comment.

Affected Steps:

check Formatting

make proto

Improvements:

Now that the repositories are public, we no longer need to exclude files like Package.swift and Package.resolved from formatting and proto checks.

• Removed EXCLUDES logic
• Removed related TODO comments
• Updated git diff checks to include all files

@wlan0 @katiewasnothere