chore(deps-dev): bump flake8 from 5.0.4 to 6.0.0

[dependabot]

Bumps flake8 from 5.0.4 to 6.0.0.

Commits

• b9a7794 Release 6.0.0
• b5cac87 Merge pull request #1748 from PyCQA/upgrade-pyflakes
• 489be4d upgrade pyflakes to 3.0.0
• 8c06197 Merge pull request #1746 from PyCQA/bump-pycodestyle
• 047e6f8 upgrade pycodestyle to 2.10
• 647996c Merge pull request #1744 from PyCQA/pre-commit-ci-update-config
• 646ad20 [pre-commit.ci] pre-commit autoupdate
• b87034d Merge pull request #1741 from PyCQA/drop-py37
• aa002ee require python 3.8.1+
• 16c371d Merge pull request #1739 from PyCQA/remove-optparse
• Additional commits viewable in compare view

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[jesse-c]

ERROR: Ignored the following versions that require a different python version: 6.0.0 Requires-Python >=3.8.1
[34](https://github.com/duffelhq/duffel-api-python/actions/runs/3536302130/jobs/5935212121#step:4:35)
ERROR: Could not find a version that satisfies the requirement flake8==6.0.0 (from versions: 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.3.1, 1.4, 1.5, 1.6, 1.6.1, 1.6.2, 1.7.0, 2.0, 2.1.0, 2.2.0, 2.2.1, 2.2.2, 2.2.3, 2.2.4, 2.2.5, 2.3.0, 2.4.0, 2.4.1, 2.5.0, 2.5.1, 2.5.2, 2.5.3, 2.5.4, 2.5.5, 2.6.0, 2.6.1, 2.6.2, 3.0.0b1, 3.0.0b2, 3.0.0, 3.0.1, 3.0.2.dev0, 3.0.2.dev1, 3.0.2, 3.0.3, 3.0.4, 3.1.0, 3.1.1, 3.2.0, 3.2.1, 3.3.0.dev0, 3.3.0, 3.4.0, 3.4.1, 3.5.0, 3.6.0, 3.7.0, 3.7.1, 3.7.2, 3.7.3, 3.7.4, 3.7.5, 3.7.6, 3.7.7, 3.7.8, 3.7.9, 3.8.0a1, 3.8.0a2, 3.8.0, 3.8.1, 3.8.2, 3.8.3, 3.8.4, 3.9.0, 3.9.1, 3.9.2, 4.0.0, 4.0.1, 5.0.0, 5.0.1, 5.0.2, 5.0.3, 5.0.4)
[35](https://github.com/duffelhq/duffel-api-python/actions/runs/3536302130/jobs/5935212121#step:4:36)
ERROR: No matching distribution found for flake8==6.0.0

[jesse-c]

https://flake8.pycqa.org/en/latest/release-notes/6.0.0.html

Require python >= 3.8.1 (See also #1633, #1741).

[cianyleow]

@dependabot rebase

[cianyleow]

Closing in favour of #228

[dependabot]

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