Use dynamic imports to fix issues in the release process

[pomek]

Suggested merge commit message (convention)

Internal: Use dynamic imports to fix issues in the release process. Closes #72.

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Additional information

Testing steps

• I modified the latest changelog version (patch bump).
• rm -rf release/; yarn release:prepare-packages --branch i/72; cat release/ckeditor5-integrations-common/package.json | grep version

   yarn run v1.22.19
   $ node ./scripts/preparepackages.js --branch i/72
   ✔ Verifying the repository.
   ✔ Updating the `#version` field.
   ✔ Running build command.
   ✔ Creating the `ckeditor5-common-utils` package in the release directory.
   ✔ Cleaning-up.
   ✔ Commit & tag.
   Done in 5.44s.
     "version": "2.2.4",
  

To clean-up:

git tag -d v2.2.4
git reset --hard HEAD~1