Update dependency koa-router to v8 (master) - abandoned

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This PR contains the following updates:

Package	Type	Update	Change
koa-router	dependencies	major	^7.2.1 -> ^8.0.0

By merging this PR, the issue #474 will be automatically resolved and closed:

Severity	CVSS Score	CVE
Medium	6.1	CVE-2022-1233
Medium	6.1	CVE-2022-1243

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Edited/Blocked Notification

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