fix: allow mercurius 14 as peer dependency (#22)

Author: ert78gb

package.json

@@ -49,7 +49,7 @@
     "graphql": "^16.6.0",
     "graphql-tag": "^2.12.6",
     "husky": "^8.0.3",
-    "mercurius": "^13.0.0",
+    "mercurius": "^14.0.0",
     "mqemitter": "^5.0.0",
     "prettier": "^2.8.4",
     "pretty-quick": "^3.1.3",
@@ -62,7 +62,7 @@
     "@mercuriusjs/gateway": "^1.2.0",
     "fastify": "^4.0.0",
     "graphql": "*",
-    "mercurius": "^12 || ^13"
+    "mercurius": "^12 || ^13 || ^14"
   },
   "peerDependenciesMeta": {
     "@mercuriusjs/federation": {