maintenance: get ready for esm/mjs

[antongolub]

https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c

[multi-semantic-release]: Error [ERR_REQUIRE_ESM]: Must use import to load ES Module: /home/runner/work/semantic-release-toolkit/semantic-release-toolkit/node_modules/file-url/index.js
require() of ES modules is not supported.
require() of /home/runner/work/semantic-release-toolkit/semantic-release-toolkit/node_modules/file-url/index.js from /home/runner/work/semantic-release-toolkit/semantic-release-toolkit/packages/common/target/es5/git/init.js is an ES module file as it is a .js file whose nearest parent package.json contains "type": "module" which defines all .js files in that package scope as ES modules.
Instead rename index.js to end in .cjs, change the requiring code to use import(), or remove "type": "module" from /home/runner/work/semantic-release-toolkit/semantic-release-toolkit/node_modules/file-url/package.json.