fix: remove unsafe file python_script.py

[fanlv]

• Use-after-free in json.encoder mapping iteration via re-entrant key encoder python/cpython#142831
• https://github.com/coze-dev/coze-studio/security/advisories/GHSA-4cx9-jg4v-r9ph

[codecov-commenter]

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✅ All modified and coverable lines are covered by tests.
see 2 files with indirect coverage changes

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