chore(deps): update dependency nb-cli to v1.2.6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
nb-cli	^1.2.5 -> ^1.2.6
nb-cli	~=1.2.5 -> ~=1.2.6

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Release Notes

nonebot/nb-cli (nb-cli)

### [`v1.2.6`](https://togithub.com/nonebot/nb-cli/releases/tag/v1.2.6): Release 1.2.6 [Compare Source](https://togithub.com/nonebot/nb-cli/compare/v1.2.5...v1.2.6) ##### What's Changed - Fix: 修复 `__plugin_meta__` typo by [@​ProgramRipper](https://togithub.com/ProgramRipper) in [https://github.com/nonebot/nb-cli/pull/102](https://togithub.com/nonebot/nb-cli/pull/102) - Fix: scripts entrypoint select by [@​yanyongyu](https://togithub.com/yanyongyu) in [https://github.com/nonebot/nb-cli/pull/103](https://togithub.com/nonebot/nb-cli/pull/103) **Full Changelog**: https://github.com/nonebot/nb-cli/compare/v1.2.5...v1.2.6

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