Disable qa_tests.jl from default test runs

[ChrisRackauckas-Claude]

Summary

• Excludes qa_tests.jl (Quality Assurance and JET tests) from the default "All" test group
• QA tests can still be run explicitly with GROUP=qa
• Tests are now tagged with :qa tag to enable selective execution

Changes

• Added :qa tag to both test items in test/misc/qa_tests.jl
• Modified test/runtests.jl to exclude :qa tagged tests when GROUP=all
• QA tests can still be run explicitly by setting GROUP=qa

Motivation

This change prevents QA tests from running in the default pre-test configuration while still allowing them to be run when specifically requested.

🤖 Generated with Claude Code

[github-actions]

Benchmark Results

Click to check benchmark results

	master	076660c...	master / 076660c...
Simple Pendulum/IIP/BoundaryValueDiffEqMIRK.MIRK2()	0.576 ± 0.013 s	0.607 ± 0.014 s	0.948 ± 0.031
Simple Pendulum/IIP/BoundaryValueDiffEqMIRK.MIRK3()	13.9 ± 0.61 ms	13.9 ± 0.47 ms	1 ± 0.055
Simple Pendulum/IIP/BoundaryValueDiffEqMIRK.MIRK4()	3.27 ± 0.22 ms	3.14 ± 0.18 ms	1.04 ± 0.091
Simple Pendulum/IIP/BoundaryValueDiffEqMIRK.MIRK5()	9.78 ± 1.3 ms	9.41 ± 1.3 ms	1.04 ± 0.2
Simple Pendulum/IIP/BoundaryValueDiffEqMIRK.MIRK6()	1.72 ± 0.28 ms	1.63 ± 0.28 ms	1.05 ± 0.25
Simple Pendulum/IIP/MultipleShooting(10, Tsit5; grid_coarsening = false)	1.86 ± 0.65 ms	1.83 ± 0.64 ms	1.02 ± 0.5
Simple Pendulum/IIP/MultipleShooting(10, Tsit5; grid_coarsening = true)	3.17 ± 0.98 ms	3.09 ± 0.95 ms	1.03 ± 0.45
Simple Pendulum/IIP/MultipleShooting(100, Tsit5; grid_coarsening = false)	0.0658 ± 0.0073 s	0.0649 ± 0.0062 s	1.01 ± 0.15
Simple Pendulum/IIP/MultipleShooting(100, Tsit5; grid_coarsening = true)	0.079 ± 0.013 s	0.0774 ± 0.0063 s	1.02 ± 0.19
Simple Pendulum/IIP/Shooting(Tsit5())	0.25 ± 0.076 ms	0.237 ± 0.075 ms	1.06 ± 0.46
Simple Pendulum/OOP/BoundaryValueDiffEqMIRK.MIRK2()	0.762 ± 0.0031 s	0.73 ± 0.0082 s	1.04 ± 0.012
Simple Pendulum/OOP/BoundaryValueDiffEqMIRK.MIRK3()	16.9 ± 4.8 ms	16.4 ± 4.5 ms	1.03 ± 0.41
Simple Pendulum/OOP/BoundaryValueDiffEqMIRK.MIRK4()	3.61 ± 0.13 ms	3.58 ± 0.22 ms	1.01 ± 0.072
Simple Pendulum/OOP/BoundaryValueDiffEqMIRK.MIRK5()	10.8 ± 0.93 ms	10.7 ± 0.89 ms	1.01 ± 0.12
Simple Pendulum/OOP/BoundaryValueDiffEqMIRK.MIRK6()	1.9 ± 0.17 ms	1.86 ± 0.16 ms	1.02 ± 0.13
Simple Pendulum/OOP/MultipleShooting(10, Tsit5; grid_coarsening = false)	3.58 ± 3.2 ms	3.49 ± 3 ms	1.03 ± 1.3
Simple Pendulum/OOP/MultipleShooting(10, Tsit5; grid_coarsening = true)	6.1 ± 5.4 ms	5.92 ± 4.9 ms	1.03 ± 1.2
Simple Pendulum/OOP/MultipleShooting(100, Tsit5; grid_coarsening = false)	0.118 ± 0.0055 s	0.114 ± 0.0044 s	1.04 ± 0.063
Simple Pendulum/OOP/MultipleShooting(100, Tsit5; grid_coarsening = true)	0.142 ± 0.0069 s	0.139 ± 0.005 s	1.02 ± 0.062
Simple Pendulum/OOP/Shooting(Tsit5())	0.639 ± 0.048 ms	0.639 ± 0.046 ms	1 ± 0.1
time_to_load	5.38 ± 0.12 s	5.36 ± 0.03 s	1 ± 0.022

### Benchmark Plots A plot of the benchmark results has been uploaded as an artifact to the workflow run for this PR. Go to "Actions"->"Benchmark a pull request"->[the most recent run]->"Artifacts" (at the bottom).