Update to AC6.6.16.2 - set-default.sh

[jkrech]

When AC6.6.16.2.cmake is merged in devtools these changes are required for cmsis-toolbox

[github-actions[bot]]

Test Results

6 files  6 suites   0s :stopwatch: 1 tests 1 :white_check_mark: 0 :zzz: 0 :x: 6 runs  6 :white_check_mark: 0 :zzz: 0 :x:

Results for commit aa65b4ae.

[jkrech]

Tests are expected to fail until the update from AC6.6.18.0.cmake to AC6.6.16.2.cmake are merged.