fix(client): pin axios to exact version 1.13.5

Lock axios to exact version to prevent auto-installing potentially
compromised 1.14.x versions (see axios/axios#10604).

Author: babu-ch

packages/client/package.json

@@ -28,7 +28,7 @@
   },
   "dependencies": {
     "@sendgrid/helpers": "^8.0.0",
-    "axios": "^1.13.5"
+    "axios": "1.13.5"
   },
   "devDependencies": {
     "chai": "4.2.0",