Prepare v2.2.0

[stefaniapedrazzi]

Update version

• [x] changelog
• [x] workflows
• [x] documentation
• [x] ros/ros2

Fix tests:

• [x] Test wheel: avoid version mismatch by first searching for local wheel packages
• [x] Docker build and test "no space left on device" error: use "free-disk-space" action
• [x] Docker tests:
  • [x] perception/object_tracking_2d fails, it seems to be due to excessive memory use in the CI/Docker test (locally works fine): reduce batch_size to 2
  • [x] control/multi_object_search fails because it requires CUDA: test is disabled

[stefaniapedrazzi]

Finally all the enabled tests are passing: https://github.com/opendr-eu/opendr/actions/runs/5401784419

They have now been restarted when adding the test sources label needed to trigger the tests that otherwise will block the merge.

[stefaniapedrazzi]

This PR is now ready for review. Then when merged, I will release the new version of the toolkit.