Update eth-hash requirement from <0.4.0,>=0.3.1 to >=0.3.1,<0.8.0

Updates the requirements on [eth-hash](https://github.com/ethereum/eth-hash) to permit the latest version.
- [Changelog](https://github.com/ethereum/eth-hash/blob/main/docs/release_notes.rst)
- [Commits](ethereum/eth-hash@v0.3.1...v0.7.0)

---
updated-dependencies:
- dependency-name: eth-hash
  dependency-type: direct:production
...

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

requirements.txt

@@ -6,7 +6,7 @@ asn1crypto>=0.22.0
 configparser>=3.5.0
 py_ecc>=5.0.0
 eth-abi>=5.1.0
-eth-hash<0.4.0,>=0.3.1
+eth-hash>=0.3.1,<0.8.0
 eth-utils>=2.0.0
 hexbytes<0.3.0
 jinja2>=2.9