fix: acknowledge upper limit for apollo-server-env

This is a temporary boundary put into place, let's fix
the types soon.

Relates to #201

package.json

@@ -32,7 +32,7 @@
   "author": "Daniel Schmidt <[email protected]>",
   "license": "MIT",
   "peerDependencies": {
-    "apollo-server-env": "*",
+    "apollo-server-env": "< 2.4.5",
     "graphql": "0.10.x - 14.x.x",
     "opentracing": "*"
   },