Move @types/react-test-renderer to dependencies

[YevheniiKotyrlo]

Summary

Move @types/react-test-renderer from devDependencies to dependencies.

The published lib/typescript/jestUtils/jestUtils.d.ts imports ReactTestInstance from react-test-renderer (line 1). Since @types/react-test-renderer is only in devDependencies, it's not installed for consumers — causing TS2307: Cannot find module 'react-test-renderer' for projects with skipLibCheck: false.

The TypeScript handbook is explicit: when published .d.ts files reference @types/* packages, those packages must be in dependencies so consumers resolve them automatically. Several major packages have fixed this exact pattern:

• webpack/schema-utils#97 — moved @types/json-schema to dependencies for the same reason
• @mui/material#14508 — keeps @types/react-transition-group in dependencies because published types extend it
• react-native-testing-library#1534 — shipped .d.ts broke skipLibCheck: false consumers, fixed within 2 days

This repo dealt with the same class of issue in #1990 (move @types/react-native to dependencies — closed only because RN 0.71+ bundled its own types, not because the approach was rejected) and #2259 (shipped .d.ts type errors).

Note: react-test-renderer is deprecated in React 19. As more projects drop it from their own dependencies, this breakage will increase for downstream consumers.

Test plan

Consumer reproduction:

mkdir test-rngh && cd test-rngh
npm init -y
npm install react react-native react-native-gesture-handler typescript @types/react

tsconfig.json:

{
  "compilerOptions": {
    "strict": true,
    "noEmit": true,
    "skipLibCheck": false,
    "moduleResolution": "bundler",
    "module": "esnext",
    "target": "esnext",
    "jsx": "react-jsx"
  },
  "include": ["*.ts"]
}

repro.ts:

import type { fireGestureHandler } from 'react-native-gesture-handler/lib/typescript/jestUtils/jestUtils';
export type { fireGestureHandler };

npx tsc --noEmit
# Error: Cannot find module 'react-test-renderer' or its corresponding type declarations.
# At: node_modules/react-native-gesture-handler/lib/typescript/jestUtils/jestUtils.d.ts(1,35)

npm install @types/react-test-renderer
npx tsc --noEmit
# Clean — zero errors

Upstream quality gates:

yarn workspace react-native-gesture-handler ts-check  # PASS
yarn workspace react-native-gesture-handler build      # PASS — module + commonjs + typescript

Zero regressions.

[Copilot]

Pull request overview

Adjusts the published dependency graph for react-native-gesture-handler so downstream TypeScript consumers can resolve types referenced by shipped .d.ts files (notably in jestUtils) without needing manual installs.

Changes:

• Move @types/react-test-renderer from devDependencies to dependencies to ensure it’s installed for library consumers.

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[j-piasecki]

Thanks for pointing it out!