Update py-solc-x requirement from <2.0.0 to <3.0.0

Updates the requirements on [py-solc-x](https://github.com/ApeWorX/py-solc-x) to permit the latest version.
- [Release notes](https://github.com/ApeWorX/py-solc-x/releases)
- [Changelog](https://github.com/ApeWorX/py-solc-x/blob/main/CHANGELOG.md)
- [Commits](https://github.com/ApeWorX/py-solc-x/compare/v0.1.0...v2.0.3)

---
updated-dependencies:
- dependency-name: py-solc-x
  dependency-type: direct:production
...

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

requirements.txt

@@ -6,21 +6,21 @@ 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
+hexbytes<1.3.0
 jinja2>=2.9
-MarkupSafe<2.1.0
+MarkupSafe<2.2.0
 mypy-extensions==1.0.0
 numpy
 persistent>=4.2.0
 py-flags
 py-evm==0.10.1b1
-py-solc-x<2.0.0
+py-solc-x<3.0.0
 py-solc
-pyparsing<3,>=2.0.2
+pyparsing>=2.0.2,<4
 requests
-rlp<4,>=3
+rlp>=3,<5
 semantic_version
 z3-solver<=4.13.0.0,>=4.8.8.0
 matplotlib