Bump skale-py from 6.0dev0 to 6.0.dev7

Bumps [skale-py](https://github.com/skalenetwork/skale.py) from 6.0dev0 to 6.0.dev7.
- [Release notes](https://github.com/skalenetwork/skale.py/releases)
- [Changelog](https://github.com/skalenetwork/skale.py/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/skalenetwork/skale.py/commits)

---
updated-dependencies:
- dependency-name: skale-py
  dependency-type: direct:production
...

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

requirements.txt

@@ -1 +1 @@
-skale.py==6.0dev0
+skale.py==6.0.dev7