Update module github.com/go-echarts/go-echarts/v2 to v2.2.7

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
github.com/go-echarts/go-echarts/v2	require	patch	v2.2.6 -> v2.2.7

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Release Notes

go-echarts/go-echarts (github.com/go-echarts/go-echarts/v2)

### [`v2.2.7`](https://togithub.com/go-echarts/go-echarts/compare/v2.2.6...v2.2.7) [Compare Source](https://togithub.com/go-echarts/go-echarts/compare/v2.2.6...v2.2.7)

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