Add v5.4.0 package updates

[onesignal-deploy]

Release v5.4.0

🚀 Features

• feat(ci): close stale user-api-updates PRs before fan-out

🐛 Bug Fixes

• fix(ruby): remove redundant gem build step from release workflow
• fix(ci): tolerate gh pr close failures during stale PR cleanup

📚 Docs

• docs: point partial-release caveat at SDK-4396 (cd.yml scope filter)

🔧 Internal

• build(release): bump package versions
• test(ruby): use string outer / symbol inner keys for result.content
• build(ruby): sync release workflow fix
• ci: generate real release notes in downstream PR bodies
• ci: correct release-notes anchor + warn on compareCommits truncation
• ci: add script/bump-version helper
• ci: auto-populate root release PR body via sdk-shared/create-release.yml
• ci: add one-click release orchestrator via sdk-shared/prep-release.yml
• ci: unstage devdist's pre-staged outputs deletions before chore commit
• ci: delegate release version math to node-semver CLI
• ci: enforce lockstep versioning across all client libraries
• ci: add partial-release label bypass + document per-language hotfix flow

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Generated from OneSignal/api-client-libraries@bc71af6...e63bace.

[onesignal-deploy]

Superseded by v5.4.0 release.