Bump web3 from 5.11.0 to 5.23.1 in /requirements

[dependabot]

Bumps web3 from 5.11.0 to 5.23.1.

Changelog

Sourced from web3's changelog.

v5.23.1 (2021-08-27)

Features

- Add constants for the zero address, zero hash, max int, and wei per ether. (`[#2109](https://github.com/ethereum/web3.py/issues/2109) <https://github.com/ethereum/web3.py/issues/2109>`__)
Improved Documentation

• Renamed "1559 transaction" to "dynamic fee transaction" where appropriate to keep consistency among the general code base for 1559 transaction (type=2) naming ([#2118](https://github.com/ethereum/web3.py/issues/2118) <https://github.com/ethereum/web3.py/issues/2118>__)
• Update AsyncHTTPProvider doc example to include modules and middlewares keyword arguments ([#2123](https://github.com/ethereum/web3.py/issues/2123) <https://github.com/ethereum/web3.py/issues/2123>__)

Misc

- `[#2110](https://github.com/ethereum/web3.py/issues/2110) <https://github.com/ethereum/web3.py/issues/2110>`__, `[#2118](https://github.com/ethereum/web3.py/issues/2118) <https://github.com/ethereum/web3.py/issues/2118>`__, `[#2122](https://github.com/ethereum/web3.py/issues/2122) <https://github.com/ethereum/web3.py/issues/2122>`__
v5.23.0 (2021-08-12)
Features

• Add support for eth_feeHistory RPC method ([#2038](https://github.com/ethereum/web3.py/issues/2038) <https://github.com/ethereum/web3.py/issues/2038>__)
• Add support for eth_maxPriorityFeePerGas RPC method ([#2100](https://github.com/ethereum/web3.py/issues/2100) <https://github.com/ethereum/web3.py/issues/2100>__)

Bugfixes

- Hot fix for string interpolation issue with contract function call decoding exception to facilitate extracting a meaningful message from the eth_call response (`[#2096](https://github.com/ethereum/web3.py/issues/2096) <https://github.com/ethereum/web3.py/issues/2096>`__)
- Bypass adding a ``gasPrice`` via the gas price strategy, if one is set, when EIP-1559 transaction params are used for ``send_transaction`` (`[#2099](https://github.com/ethereum/web3.py/issues/2099) <https://github.com/ethereum/web3.py/issues/2099>`__)
Improved Documentation

• Update feeHistory docs ([#2104](https://github.com/ethereum/web3.py/issues/2104) <https://github.com/ethereum/web3.py/issues/2104>__)

v5.22.0 (2021-08-02)

Features

</tr></table> 

... (truncated)

Commits

• 8e50860 Bump version: 5.23.0 → 5.23.1
• de8094a Bump version: 5.23.0 → 5.23.0
• db3d5e4 Compile release notes
• 0265cba Update AsyncHTTPProvider docs (#2123)
• 4456bce Bump the py-geth version to 3.5.0
• 2603d3f Refactoring for better readability among some of the codebase
• 0217190 Changes related to new geth defaults
• a3f3499 Update geth test fixture to use v1.10.8
• 73d7da0 Issue #2095 - Provide constants for e.g. the zero address and max uint256 (#2...
• 13685d6 Update ipfshttpclient to 0.8.0a2 (#2110)
• Additional commits viewable in compare view

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[dependabot]

Superseded by #57.