Bump web3 from 6.0.0 to 7.15.0

Bumps [web3](https://github.com/ethereum/web3.py) from 6.0.0 to 7.15.0.
- [Changelog](https://github.com/ethereum/web3.py/blob/main/docs/release_notes.rst)
- [Commits](ethereum/web3.py@v6.0.0...v7.15.0)

---
updated-dependencies:
- dependency-name: web3
  dependency-version: 7.15.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -66,7 +66,7 @@ requests==2.32.2
 beautifulsoup4==4.12.0
 shodan==1.31.0  # Updated
 python-nmap==0.7.1
-web3==6.0.0  # Updated from 5.x for security
+web3==7.15.0  # Updated from 5.x for security
 
 # --- Utilities ---
 tqdm==4.66.3