Fix deadlock in RelationshipsAPI.list

[haakonvt]

From issue: #1831

DM-1896: https://cognitedata.atlassian.net/browse/DM-1896

Description

[7.54.2] - 2024-07-16

Fixed

• A bug in the list method of the RelationshipsAPI that could cause a thread deadlock.

Checklist:

• [ ] Tests added/updated.
• [ ] Documentation updated. Documentation is generated from docstrings - these must be updated according to your change. If a new method has been added it should be referenced in cognite.rst in order to generate docs based on its docstring.
• [x] Changelog updated in CHANGELOG.md.
• [x] Version bumped. If triggering a new release is desired, bump the version number in _version.py and pyproject.toml per semantic versioning.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 97.29730% with 1 line in your changes missing coverage. Please review.

Project coverage is 92.29%. Comparing base (d6730a2) to head (c8215b3).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1849 +/- ## ========================================== - Coverage 92.31% 92.29% -0.02% ========================================== Files 124 124 Lines 18666 18671 +5 ========================================== + Hits 17231 17232 +1 - Misses 1435 1439 +4 ``` | [Files](https://app.codecov.io/gh/cognitedata/cognite-sdk-python/pull/1849?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=cognitedata) | Coverage Δ | | |---|---|---| | [cognite/client/\_version.py](https://app.codecov.io/gh/cognitedata/cognite-sdk-python/pull/1849?src=pr&el=tree&filepath=cognite%2Fclient%2F_version.py&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=cognitedata#diff-Y29nbml0ZS9jbGllbnQvX3ZlcnNpb24ucHk=) | `100.00% <100.00%> (ø)` | | | [cognite/client/utils/\_auxiliary.py](https://app.codecov.io/gh/cognitedata/cognite-sdk-python/pull/1849?src=pr&el=tree&filepath=cognite%2Fclient%2Futils%2F_auxiliary.py&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=cognitedata#diff-Y29nbml0ZS9jbGllbnQvdXRpbHMvX2F1eGlsaWFyeS5weQ==) | `92.41% <100.00%> (+0.10%)` | :arrow_up: | | [cognite/client/\_api/relationships.py](https://app.codecov.io/gh/cognitedata/cognite-sdk-python/pull/1849?src=pr&el=tree&filepath=cognite%2Fclient%2F_api%2Frelationships.py&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=cognitedata#diff-Y29nbml0ZS9jbGllbnQvX2FwaS9yZWxhdGlvbnNoaXBzLnB5) | `98.83% <96.55%> (-1.17%)` | :arrow_down: | ... and [2 files with indirect coverage changes](https://app.codecov.io/gh/cognitedata/cognite-sdk-python/pull/1849/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=cognitedata)