Tests are failing because:

ImportError: pycurl.cpython-313-x86_64-linux-gnu.so: undefined symbol: Py_TRASHCAN_SAFE_BEGIN

Root cause
arvados imports pycurl
pycurl is a C extension
The pycurl wheel you have installed was compiled against an older Python C API
Python 3.13 removed / changed the internal symbol Py_TRASHCAN_SAFE_BEGIN

At import time, the dynamic loader can’t resolve that symbol → hard failure
So even though the wheel filename says cpython-313, it’s not actually compatible with the final Python 3.13 ABI.
This is a very common failure mode early in a new Python release.
Why you’re seeing it now
GitHub Actions is using Python 3.13.11
pycurl does not yet fully support Python 3.13
arvados has a hard dependency on pycurl