chore(deps): update docker/setup-buildx-action action to v4 #6947

Performance Regression: -15.51%

❌ 2 regressed benchmarks
✅ 1007 untouched benchmarks
⏩ 1515 skipped benchmarks¹

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

	Mode	Benchmark	`BASE`	`HEAD`	Efficiency
❌	Simulation	`bitwise_not_vortex_buffer_mut[1024]`	477.2 ns	535.6 ns	-10.89%
❌	Simulation	`bitwise_not_vortex_buffer_mut[128]`	317.8 ns	376.1 ns	-15.51%

_{Comparing renovate/docker-setup-buildx-action-4.x (a3750e6) with develop (eca9aa1)}

1515 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩