[CI] Add five unittest

[Echo-Nie]

Motivation

Enhance code reliability by adding unit tests for critical modules, ensuring consistent behavior and catching regressions early.

Modifications

Added unit tests for:

• fastdeploy/distributed/custom_all_reduce/cuda_wrapper.py
• fastdeploy/distributed/communication.py
• fastdeploy/logger/setup_logging.py
• fastdeploy/logger/logger.py
• fastdeploy/logger/handlers.py

Usage or Command

python tests/logger/setup_logging.py
...

Accuracy Tests

Name	Stmts	Miss	Cover
cuda_wrapper.py	88	1	99%
communication.py	45	6	87%
setup_logging.py	31	0	100%
logger.py	74	3	96%
handlers.py	196	26	87%

Checklist

• Add at least a tag in the PR title.
  • Tag list: [[CI]]
• Format your code, run pre-commit before commit.
• Add unit tests. Please write the reason in this PR if no unit tests.
• Provide accuracy results.
• If the current PR is submitting to the release branch, make sure the PR has been submitted to the develop branch, then cherry-pick it to the release branch with the [Cherry-Pick] PR tag.

@YuanRisheng

[paddle-bot]

Thanks for your contribution!