chore: enable yarn pnp

[merceyz]

Testing Yarn PnP

Requires

• feat(resolve-extends): accept absolute path in extends conventional-changelog/commitlint#825
• feat(preset-loader): allow use of absolute package path conventional-changelog/conventional-changelog#530
• fix: check for js and cjs version of babelrc babel-utils/babel-plugin-tester#54 (can enable babelrc globally instead, but prefer not to)
• fix: enforce require.resolve for the default preset conventional-changelog/standard-version#465
  Using forked version for now