fix(@nestjs/apollo): Add in missing peer dependencies.

The `@netsjs/apollo` and `@nestjs/mercurius` packages rely on using `loadPackage('@apollo/subgraph')` but this package isn't reflected in either's package.json. This is incompatible with `pnpm`.

Author: Zackery Griesinger

packages/apollo/package.json

@@ -47,6 +47,7 @@
   },
   "peerDependencies": {
     "@apollo/gateway": "^0.44.1 || ^0.46.0 || ^0.48.0 || ^0.49.0 || ^0.50.0 || ^2.0.0",
+    "@apollo/subgraph": "^2.0.0",
     "@nestjs/common": "^8.2.3 || ^9.0.0",
     "@nestjs/core": "^8.2.3 || ^9.0.0",
     "@nestjs/graphql": "^10.0.0",
@@ -59,6 +60,9 @@
     "@apollo/gateway": {
       "optional": true
     },
+    "@apollo/subgraph": {
+      "optional": true
+    },
     "apollo-server-core": {
       "optional": true
     },

packages/mercurius/package.json

@@ -35,10 +35,16 @@
     "mercurius-integration-testing": "6.0.1"
   },
   "peerDependencies": {
+    "@apollo/subgraph": "^2.0.0",
     "@nestjs/common": "^8.2.3 || ^9.0.0",
     "@nestjs/graphql": "^10.0.0",
     "fastify": "^3.25.0 || ^4.0.0",
     "graphql": "^15.8.0 || ^16.0.0",
     "mercurius": "^8.12.0 || ^9.0.0 || ^10.0.0"
+  },
+  "peerDependenciesMeta": {
+    "@apollo/subgraph": {
+      "optional": true
+    }
   }
 }