Update dependency discuss to v0.3.8

Created by: renovate[bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
discuss	0.3.7 -> 0.3.8

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Release Notes

discussjs/Discuss

v0.3.8

Compare Source

Fix

多行评论时第一行多出一个空格的bug #​3a21c4

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