v4.3.0

📚 PR:

• Bump standard from 14.3.4 to 15.0.0
• fix(test): add semver version to check node version on tests
• types(Chain): add response as Promise on chainable methods
• update: add tests for PromiseLike response
• update(index): add end overload type
• Merge pull request #110 from RafaelGSS/fix-typescript-chain
• use let instead of var
• feat: add stale (#106)
• Bump standard from 15.0.1 to 16.0.1 (#111)