Bump web3 from 5.11.0 to 5.28.0 in /requirements

[dependabot]

Bumps web3 from 5.11.0 to 5.28.0.

Changelog

Sourced from web3's changelog.

v5.28.0 (2022-02-09)

Features

- Added Async functions for Geth Personal and Admin modules (`[#1413](https://github.com/ethereum/web3.py/issues/1413)
  <https://github.com/ethereum/web3.py/issues/1413>`__)
- async support for formatting, validation, and geth poa middlewares (`[#2098](https://github.com/ethereum/web3.py/issues/2098)
  <https://github.com/ethereum/web3.py/issues/2098>`__)
- Calculate a default ``maxPriorityFeePerGas`` using ``eth_feeHistory`` when
  ``eth_maxPriorityFeePerGas`` is not available, since the latter is not a part
  of the Ethereum JSON-RPC specs and only supported by certain clients. (`[#2259](https://github.com/ethereum/web3.py/issues/2259)
  <https://github.com/ethereum/web3.py/issues/2259>`__)
- Allow NamedTuples in ABI inputs (`[#2312](https://github.com/ethereum/web3.py/issues/2312)
  <https://github.com/ethereum/web3.py/issues/2312>`__)
- Add async `eth.syncing` method (`[#2331](https://github.com/ethereum/web3.py/issues/2331)
  <https://github.com/ethereum/web3.py/issues/2331>`__)
Bugfixes

• remove ens.utils.dict_copy decorator ([#1423](https://github.com/ethereum/web3.py/issues/1423) <https://github.com/ethereum/web3.py/issues/1423>__)
• The exception retry middleware whitelist was missing a comma between txpool and testing ([#2327](https://github.com/ethereum/web3.py/issues/2327) <https://github.com/ethereum/web3.py/issues/2327>__)
• Properly initialize external modules that do not inherit from the web3.module.Module class ([#2328](https://github.com/ethereum/web3.py/issues/2328) <https://github.com/ethereum/web3.py/issues/2328>__)

v5.27.0 (2022-01-31)

Features

- Added Async functions for Geth TxPool (`[#1413](https://github.com/ethereum/web3.py/issues/1413)
  <https://github.com/ethereum/web3.py/issues/1413>`__)
- external modules are no longer required to inherit from the
  ``web3.module.Module`` class (`[#2304](https://github.com/ethereum/web3.py/issues/2304)
  <https://github.com/ethereum/web3.py/issues/2304>`__)
- Add async `eth.get_logs` method (`[#2310](https://github.com/ethereum/web3.py/issues/2310)
  <https://github.com/ethereum/web3.py/issues/2310>`__)
- add Async access to `default_account` and `default_block` (`[#2315](https://github.com/ethereum/web3.py/issues/2315)
  <https://github.com/ethereum/web3.py/issues/2315>`__)
- Update eth-tester and eth-account dependencies to pull in bugfix from
  eth-keys (`[#2320](https://github.com/ethereum/web3.py/issues/2320) <https://github.com/ethereum/web3.py/issues/2320>`__)
</tr></table> 

... (truncated)

Commits

• 78e01cf Bump version: 5.27.0 → 5.28.0
• 05ea17f Compile release notes
• e4331ea recorrect docs for external modules
• 3bcf7de Refactor attach_module logic
• bdd8923 correct docs for external modules
• 41f154f Properly initialize external modules
• 0a2cc6b Feature/async geth admin (#2329)
• e316a19 add newsfragment
• 8078f65 Update main.py
• 6199feb fixed lint error
• Additional commits viewable in compare view

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Superseded by #77.