fix: open up versions for gax and tools post-migration (#7854)

Author: feywind

core/packages/gax/package.json

@@ -19,7 +19,7 @@
     "object-hash": "^3.0.0",
     "proto3-json-serializer": "3.0.4",
     "protobufjs": "^7.5.4",
-    "retry-request": "8.0.2",
+    "retry-request": "^8.0.2",
     "rimraf": "^5.0.1"
   },
   "devDependencies": {

core/packages/tools/package.json

@@ -32,7 +32,7 @@
   "dependencies": {
     "@babel/core": "^7.26.8",
     "@babel/traverse": "^7.26.8",
-    "google-gax": "5.0.6",
+    "google-gax": "^5.0.6",
     "google-proto-files": "^5.0.0",
     "protobufjs-cli": "^1.2.0",
     "uglify-js": "^3.19.3",