chore: update dependency @grpc/proto-loader to v0.7.7

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

packages/recommender/package-lock.json

@@ -38,7 +38,7 @@
   ],
   "dependencies": {
     "@grpc/grpc-js": "1.6.7",
-    "@grpc/proto-loader": "0.6.13",
+    "@grpc/proto-loader": "0.7.7",
     "@loopback/http-server": "4.0.0",
     "express": "4.18.1"
   },