chore: Release 0.4.0

[sbernauer]

Description

Changed

• BREAKING: Only send a subset of the fields sufficient for most use-cases to OPA for performance reasons.
  The old behavior of sending all fields can be restored by setting hadoop.security.authorization.opa.extended-requests
  to true (#49).
• Performance fixes (#50)
• Updates various dependencies and do a full spotless run. This will now require JDK 17 or later to build
  (required by later error-prone versions), the build target is still Java 11 #51
• Bump okio to 1.17.6 to get rid of CVE-2023-3635 (#46)

Fixed

• Set path to / when the operation contentSummary is called on /. Previously path was set to null (#49).

Definition of Done Checklist

• Not all of these items are applicable to all PRs, the author should update this template to only leave the boxes in that are relevant
• Please make sure all these things are done and tick the boxes

# Reviewer
- [ ] Code contains useful comments
- [ ] (Integration-)Test cases added
- [ ] Documentation added or updated
- [ ] Changelog updated

# Acceptance
- [ ] Proper release label has been added