adopt standard ruby formatting

[mkocher]

This was already being done inside the bosh-stemcell gem, now adding it at the top level as well.

[coderabbitai]

Need the big picture first? Review this PR in Change Stack to see what changed before going file by file.

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: 69cf26a7-d968-4d7a-b498-ba92a5f2c589

📥 Commits

Reviewing files that changed from the base of the PR and between e603eb3 and ef1e590.

⛔ Files ignored due to path filters (1)

• Gemfile.lock is excluded by !**/*.lock

📒 Files selected for processing (3)

• Gemfile
• Rakefile
• ci/tasks/light-aws/merge-builds

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Walkthrough

This pull request applies a codebase-wide refactoring focused on code style consistency and linting infrastructure. The Gemfile is reformatted to use double-quoted strings for gem declarations. The Rakefile adds a require for standard/rake (linting support), refactors error handling in two build tasks from explicit begin/rescue blocks to inline rescue syntax, and normalizes all string literals to double quotes. The merge-builds script in ci/tasks/light-aws/ is updated with consistent double-quoted strings, a simplified run_command implementation, and double-quoted YAML key access. All functional behavior in build tasks and script logic remains unchanged.

Suggested reviewers

• selzoc
• ragaskar
• ystros

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The pull request description provides context about the change but does not follow the required 'Merge Forward' strategy template with branch naming and PR sequencing instructions.	Update the description to follow the repository's Merge Forward strategy template, including information about target branch, any merge-forward PRs needed, and the appropriate branch naming convention.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the main change: adopting standard Ruby formatting across the repository's top-level files (Gemfile, Rakefile, and shell scripts).
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch jammy-standard-rb

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