feat(instrumentation-koa): Add support for koa 3

Author: tlindhardt

package-lock.json

@@ -13,6 +13,6 @@
 koa:
   # Testing ^2.7.0 covers at least 97% of the downloaded koa versions
   versions:
-    include: "^2.7.0"
+    include: "^3.0.0"
     mode: latest-minors
   commands: npm run test

packages/instrumentation-koa/.tav.yml

@@ -23,7 +23,7 @@ npm install --save @opentelemetry/instrumentation-koa
 
 ### Supported Versions
 
-- [`koa`](https://www.npmjs.com/package/koa) versions `>=2.0.0 <3`
+- [`koa`](https://www.npmjs.com/package/koa) versions `>=2.0.0 <=3.0.0`
 - [`@koa/router`](https://www.npmjs.com/package/@koa/router) versions `>=8.0.0`
 
 ## Usage