Bump safe-eth-py from 6.0.0b36 to 6.0.0b39

Bumps [safe-eth-py](https://github.com/safe-global/safe-eth-py) from 6.0.0b36 to 6.0.0b39.
- [Release notes](https://github.com/safe-global/safe-eth-py/releases)
- [Commits](safe-global/safe-eth-py@v6.0.0b36...v6.0.0b39)

---
updated-dependencies:
- dependency-name: safe-eth-py
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements/prod.txt

@@ -2,5 +2,5 @@ fastapi[all]==0.114.2
 pydantic-settings==2.5.2
 pyjwt[crypto]==2.9.0
 redis[hiredis]==5.0.8
-safe-eth-py==6.0.0b36
+safe-eth-py==6.0.0b39
 siwe==4.2.0