Version 20.0.0

Major

• Updated Node.js support to ^22.13.0 || ^24.0.0 || >=26.0.0.
• Updated the graphql peer dependency to ^16.0.0 || ^17.0.0, fixing #368.
• Updated the dependency extract-files to v14.

Patch

• Updated dev dependencies.
• Added the missing dev dependency globals.
• Migrated config for TypeScript v7.
• Updated VS Code workspace settings.
• Updated GitHub Actions CI config:
  • Run tests with the lower and upper bounds of each supported major Node.js version.
  • Removed conditionality for Node.js < v22 support.
  • Updated actions/checkout to v7.
  • Updated actions/setup-node to v7.
• Switched to the Node.js test runner code coverage, removing the dev dependency coverage-node.
• Refactored tests from describe and it to suite and test.
• Improved the test helper function assertBundleSize.
• Added a .gitattributes file to enforce LF line endings.
• Sorted config in .editorconfig.
• Updated the readme code examples and fixed typos.
• Replaced in docs example imports from @apollo/client/core with @apollo/client, via #363.
• Fixed changelog entry typos for v15.0.0 and v18.0.0.