Allow skipping Aqua.jl checks during selective test runs

[abpolym]

When running selective tests with test_args, e.g. make test test_args="path/to/testfile.jl" the global Aqua.test_all checks are still executed, including the “persistent tasks” test, which adds unnecessary overhead (20+ seconds per run).

This slows down development when only a small subset of tests is being run locally.

Introduce a mechanism to skip Aqua checks by default during selective runs, but still allow running them when needed. For example with an environment variable: RUN_AQUA=false make test test_args="path/to/testfile.jl"

Benefits

• Much faster feedback loop during development
• CI remains unaffected
• Maintains reproducibility and full checks when needed