(Mostly) Replace flake8 with Ruff

[Quexington]

See PR #18759 for more information about Ruff. This PR continues the work of simplifying our pre-commit workflow by (mostly) replacing another one of our tools with Ruff.

This only takes a partial step towards eliminating flake8 for auditability reasons. One difference between flake8 and Ruff is that Ruff is more strict wrt unused variables in that it does not allow them even during tuple deconstructions. There's been some debate about whether this should be a separate rule: astral-sh/ruff#8884 but for now, it all lives under the same code. We don't want to ignore that code generally, but there's approximately 540 errors to fix if we switch to linting it with Ruff. In order to preserve PR and code history auditability, I'll follow up with a PR to fix those errors by themselves so that the other rules that are applied can be viewed in this PR.

[github-actions]

File	Coverage	Missing Lines
chia/_tests/util/benchmark_cost.py	0.0%	lines 170
chia/full_node/full_node.py	66.7%	lines 1144
chia/plotting/check_plots.py	0.0%	lines 164-165
chia/util/profiler.py	0.0%	lines 180
chia/util/task_timing.py	0.0%	lines 251

Total	Missing	Coverage
27 lines	6 lines	77%

[coveralls-official]

Pull Request Test Coverage Report for Build 11618368919

Details

• 21 of 27 (77.78%) changed or added relevant lines in 15 files are covered.
• 21 unchanged lines in 8 files lost coverage.
• Overall coverage increased (+0.008%) to 90.868%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
chia/_tests/util/benchmark_cost.py	0	1	0.0%
chia/full_node/full_node.py	2	3	66.67%
chia/util/profiler.py	0	1	0.0%
chia/util/task_timing.py	0	1	0.0%
chia/plotting/check_plots.py	0	2	0.0%

Files with Coverage Reduction	New Missed Lines	%
chia/daemon/keychain_proxy.py	1	73.16%
chia/full_node/pending_tx_cache.py	1	96.55%
chia/farmer/farmer.py	1	72.52%
chia/server/node_discovery.py	1	79.82%
chia/daemon/client.py	1	73.49%
chia/timelord/timelord_launcher.py	2	70.71%
chia/rpc/rpc_server.py	3	88.0%
chia/timelord/timelord.py	11	78.8%

Totals
Change from base Build 11618130161:	0.008%
Covered Lines:	102710
Relevant Lines:	112805

---

💛 - Coveralls

[emlowe]

Coverage exemption