Bump web3 from 6.11.1 to 7.15.0

Bumps [web3](https://github.com/ethereum/web3.py) from 6.11.1 to 7.15.0.
- [Changelog](https://github.com/ethereum/web3.py/blob/main/docs/release_notes.rst)
- [Commits](ApeWorX/web3.py@v6.11.1...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]

setup.py

@@ -30,7 +30,7 @@
     "PyYAML==6.0.1",
     "pytz==2023.3.post1",
     "ocean-contracts==2.0.2",
-    "web3==6.11.1",
+    "web3==7.15.0",
     "gevent",
     "python-dateutil==2.8.2",
     "pyshacl==0.22.2",