build(deps): bump aiohttp in /ai/gen-ai-agents/travel-agent

---
updated-dependencies:
- dependency-name: aiohttp
  dependency-version: 3.13.3
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

ai/gen-ai-agents/travel-agent/requirements.txt

@@ -1,5 +1,5 @@
 aiohappyeyeballs==2.6.1
-aiohttp==3.11.18
+aiohttp==3.13.3
 aiosignal==1.3.2
 altair==5.5.0
 annotated-types==0.7.0