[WIP] Integrate IAR Toolchain into CI

[JonatanAntoni]

[github-actions[bot]]

Test Results

     464 files  +   116       464 suites  +116   10m 20s :stopwatch: + 2m 11s        49 tests ±       0           8 :heavy_check_mark:  -      36         5 :zzz: ±       0       36 :x: +     36  22 736 runs  +5 684  12 488 :heavy_check_mark: +1 412  7 968 :zzz: +1 992  2 280 :x: +2 280 

For more details on these failures, see this check.

Results for commit 3dc51538. ± Comparison against base commit c53c0f5c.

:recycle: This comment has been updated with latest results.

[JonatanAntoni]

Replaced by #229