[fix] koa-router and @koa/router are on different versions of path-to-regex

[bizob2828]

Describe the bug

I'm on the New Relic Node.js agent team and there was a release of koa-router@13.0.1 this week that broke some of our tests. We fixed them because path-to-regex was upgraded to 8.x. However last night @koa/router released 13.1.0 and the path-to-regex package was reverted to 6.x. I thought these packages were supposed to be identical. We can totally handle this nuance but jsut wanted to get confirmation from you all if this was intended?

[3imed-jaberi]

We are reverting path-to-regex from version 8 to version 6 due to the challenges and significant impacts that version 8 poses for many consumers. We are not yet prepared to provide guidance or support for this transition. We plan to address this in a future major release, likely version 14.

Note: The bump to version 8 occurred due to a typo.

About the koa-router, I am waiting to get access to be able to publish these versions: 12.0.2 & 13.1.0.

Koa Router Version	Path to Regex Version	Koa Router Status
12.0.1	6.2.x	Deprecated ❌
12.0.2+	6.3.0+	Not Deprecated ✅
13.0.0	6.2.x	Deprecated ❌
13.0.1	8.x.x	Deprecated ❌
13.1.0+	6.3.0+	Not Deprecated ✅
14.x.x	8.x.x	Soon ⏳ ...

cc @titanism