Fix wrong type (asyncio.Future -> concurrent.futures.Future) and handle CancelledError

[bl1nch]

Description

Fixes #4230 and handle CancelledError

Test Code

# Test code for the review of this PR

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• I signed the CLA.
• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings

• New and existing tests pass locally with my changes
• I have made corresponding changes to the documentation (if applicable)

Screenshots (if applicable):

Additional details

Summary by Sourcery

Correct the type annotation in the run_task function and handle CancelledError exceptions to improve error handling.

Bug Fixes:

• Fix the incorrect type annotation from asyncio.Future to concurrent.futures.Future in the run_task function.
• Handle CancelledError exceptions gracefully in the run_task function.

[ndonkoHenri]

@sourcery-ai review