feat: upgrade multiple dependencies with Snyk

Snyk has created this PR to upgrade:
  - graphql from 15.0.0 to 16.9.0.
    See this package in npm: https://www.npmjs.com/package/graphql
  - graphql-scalars from 1.1.2 to 1.23.0.
    See this package in npm: https://www.npmjs.com/package/graphql-scalars
  - graphql-tag from 2.10.3 to 2.12.6.
    See this package in npm: https://www.npmjs.com/package/graphql-tag
  - graphql-tools from 5.0.0 to 9.0.1.
    See this package in npm: https://www.npmjs.com/package/graphql-tools

See this project in Snyk:
https://app.snyk.io/org/gregbrimble/project/d78861a6-63c6-4c43-a55b-cd5a9cc8a515?utm_source=github&utm_medium=referral&page=upgrade-pr

packages/server/package.json

@@ -18,11 +18,11 @@
   "dependencies": {
     "@kv-orm/cf-workers": "2.0.1",
     "@kv-orm/core": "0.1.1",
-    "graphql": "15.0.0",
+    "graphql": "16.9.0",
     "graphql-iso-date": "3.6.1",
-    "graphql-scalars": "1.1.2",
-    "graphql-tag": "2.10.3",
-    "graphql-tools": "5.0.0",
+    "graphql-scalars": "1.23.0",
+    "graphql-tag": "2.12.6",
+    "graphql-tools": "9.0.1",
     "wait-until-all": "1.0.1"
   }
 }