Add eslint-plugin-relay rules (warning only)

Signed-off-by: Émile Ré <emile@getprobo.com>

package-lock.json

@@ -5605,6 +5605,10 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/eslint-plugin-relay": {
+      "resolved": "packages/eslint-relay-plugin",
+      "link": true
+    },
     "node_modules/@types/estree": {
       "version": "1.0.8",
       "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.8.tgz",
@@ -9318,6 +9322,15 @@
         "semver": "bin/semver.js"
       }
     },
+    "node_modules/eslint-plugin-relay": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-relay/-/eslint-plugin-relay-2.0.0.tgz",
+      "integrity": "sha512-H52u+YM72VhBwhKrGSSdsjbeAWbLIgmph3z4Hgfyqm8Jt5pP5g9PbFmBp8kk10D4vZldrbNwa0esHxDRoczprg==",
+      "license": "MIT",
+      "dependencies": {
+        "graphql": "^14.0.0 || ^15.0.0 || ^16.0.0"
+      }
+    },
     "node_modules/eslint-scope": {
       "version": "8.4.0",
       "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-8.4.0.tgz",
@@ -18004,14 +18017,20 @@
         "eslint-plugin-import-x": "^4.16.1",
         "eslint-plugin-react": "^7.37.5",
         "eslint-plugin-react-hooks": "^7.0.1",
+        "eslint-plugin-relay": "^2.0.0",
         "globals": "^17.0.0",
         "typescript-eslint": "^8.53.1"
       },
       "devDependencies": {
+        "@types/eslint-plugin-relay": "^1.0.0",
         "eslint": "^9.39.2",
         "typescript": "^5.8.3"
       }
     },
+    "packages/eslint-relay-plugin": {
+      "name": "@types/eslint-plugin-relay",
+      "version": "1.0.0"
+    },
     "packages/helpers": {
       "name": "@probo/helpers",
       "version": "1.0.0",