Create baseline for bandit to remove false positives

[ChihweiLHBird]

With the assumption that all issues reported on the current HEAD of the codebase are all false positives, generate the baseline file by:

bandit --recursive sanic -b ./bandit.baseline

And apply the baseline during security checks.

[Copilot]

Pull Request Overview

This PR creates a bandit baseline file to filter out false positive security warnings by changing the security check configuration from skipping specific test types to using a baseline file approach.

• Updated the security check command in tox.ini to use baseline filtering
• Added a comprehensive bandit.baseline file containing 10 current security findings

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
tox.ini	Modified bandit command to use baseline filtering instead of skipping specific test types
bandit.baseline	Added comprehensive baseline file with 10 security findings marked as false positives

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