Fix ContentEncodingError when loading kg-registry YAML

[Dashing-Nelson]

Description of the changes

Fixes / Resolves the following issues:

Checklist:

• Added label to PR (e.g. enhancement or bug)
• Ensured the PR is named descriptively. FYI: This name is used as part of our changelog & release notes.
• Looked at the diff on github to make sure no unwanted files have been committed.
• Made corresponding changes to the documentation
• Added tests that prove my fix is effective or that my feature works
• Any dependent changes have been merged and published in downstream modules
• If breaking changes occur or you need everyone to run a command locally after
  pulling in latest main, uncomment the below "Merge Notification" section and
  describe steps necessary for people
• Ran on sample data using kedro run -e sample -p test_sample (see sample environment guide)