Bump certifi from 2023.7.22 to 2024.7.4 in /webinars/genai-chatbot

Bumps [certifi](https://github.com/certifi/python-certifi) from 2023.7.22 to 2024.7.4.
- [Commits](certifi/python-certifi@2023.07.22...2024.07.04)

---
updated-dependencies:
- dependency-name: certifi
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

webinars/genai-chatbot/requirements.txt

@@ -10,7 +10,7 @@ blinker==1.6.3
 boto3==1.28.70
 botocore==1.31.70
 cachetools==5.3.2
-certifi==2023.7.22
+certifi==2024.7.4
 charset-normalizer==3.3.1
 click==8.1.7
 colorama==0.4.4