Vnstock

Cập nhật phiên bản mới, gỡ lỗi một số vấn đề phát sinh được báo lỗi:
-Lỗi khi gọi lịch sử giá: [issue 147](https://github.com/thinh-vu/vnstock/issues/147)
- Bổ sung cơ chế báo lỗi khi dữ liệu trả về không như mong muốn với BCTC: [issue 133](https://github.com/thinh-vu/vnstock/issues/133#issuecomment-2395270403)

- Migrated Vnstock Legacy code to Vnstock3 for Telegram, Lark, and Slack messaging tools.
- Converted the fund.py module from Vnstock Legacy to Vnstock3.
- Removed mandatory acceptance of terms and conditions. By continuing to use Vnstock3, you agree to the terms and conditions.
- Bug fixes and improvements:

> - Validated fund code input.
> - Fixed issue with retrieving historical prices by month.

**Full Changelog**: https://github.com/thinh-vu/vnstock/compare/v3.0.5...v3.0.6

Changes log: https://vnstocks.com/docs/tai-lieu/lich-su-phien-ban/#21-06-2024