[#3] Enable Cirrus CI

[elBoberido]

Notes for Reviewer

This PR re-enables the Cirrus CI and introduces the same handling for draft PRs like the github CI. Unfortunately, a dummy commit is required to trigger the Cirrus CI after the PR is marked ready for review.

Additionally, a the 'hashbrown' dependency was updated to fix a security vulnerability and 'cbindgen' was updated to get rid of the unmaintained 'atty' dependency.

Pre-Review Checklist for the PR Author

• Add sensible notes for the reviewer
• PR title is short, expressive and meaningful
• Consider switching the PR to a draft (Convert to draft)
  • as draft PR, the CI will be skipped for pushes
• Relevant issues are linked in the References section
• Every source code file has a copyright header with SPDX-License-Identifier: Apache-2.0 OR MIT
• Branch follows the naming format (iox2-123-introduce-posix-ipc-example)
• Commits messages are according to this guideline
  • Commit messages have the issue ID ([#123] Add posix ipc example)
  • Commit author matches Eclipse Contributor Agreement(and ECA is signed)
• Tests follow the best practice for testing
• Changelog updated in the unreleased section including API breaking changes
• Assign PR to reviewer
• All checks have passed (except task-list-completed)

Checklist for the PR Reviewer

• Commits are properly organized and messages are according to the guideline
• Unit tests have been written for new behavior
• Public API is documented
• PR title describes the changes

Post-review Checklist for the PR Author

• All open points are addressed and tracked via issues

References

Relates to #3

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.04%. Comparing base (750ac04) to head (244ab21).
Report is 16 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #561      +/-   ##
==========================================
+ Coverage   79.00%   79.04%   +0.03%     
==========================================
  Files         203      203              
  Lines       25307    25307              
==========================================
+ Hits        19995    20003       +8     
+ Misses       5312     5304       -8     

see 11 files with indirect coverage changes