Update koa-router

[diovane-miranda]

What is the purpose of this pull request?

Update koa-router dependency.

What problem is this solving?

Solve security vulnerability detected by Dependabot.

How should this be manually tested?

Locally link an application that uses node-vtex-api framework, make requests to some endpoints and check if there aren't any error logs.

Screenshots or example usage

Types of changes

• Bug fix (a non-breaking change which fixes an issue)
• New feature (a non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Requires change to documentation, which has been updated accordingly.
• Chore

[fmartins-vtex]

@diovane-miranda Theoretically, your changes appear correct.

How are you planning to monitor this change?
Do you have a gradual rollout plan?

I understand that we should prioritize these aspects.

Also, I think that you should mark this PR as "Minor change" instead of "Chore"

[arturpimentel]

LGTM

How are you planning to monitor this change?
Do you have a gradual rollout plan?

It's hard to say how that can be monitored, only if we have some way of tracking node-service-runtime's rollouts. Maybe @Jeymisson can help with that. Besides, I believe we usually put rollout plans in our Slack's #defcon channel, where IMOCs will review any critical deploys in VTEX IO, such as this one. But that's a nice thing to keep in mind :)