Fix vulnerabilities in examples

Author: Sebastian Molenda

examples/pubnub_asyncio/fastapi/requirements.txt

@@ -1,4 +1,6 @@
 fastapi>=0.115.11
 pubnub>=10.1.0
-aiohttp>=3.11.14
-urllib3>=1.26.19,<2
+aiohttp>=3.11.14 # not directly required, pinned to avoid a vulnerability
+requests>=2.32.2 # not directly required, pinned to avoid a vulnerability
+urllib3>=1.26.19,<2 # not directly required, pinned to avoid a vulnerability
+zipp>=3.19.1 # not directly required, pinned to avoid a vulnerability

examples/pubnub_asyncio/http/requirements.txt

@@ -1,3 +1,5 @@
 aiohttp>=3.11.14
 aiohttp-cors>=0.8.0
 pubnub>=10.1.0
+requests>=2.32.2 # not directly required, pinned to avoid a vulnerability
+urllib3>=1.26.19,<2 # not directly required, pinned to avoid a vulnerability