Remove @avoid_ci from test_steal

[crusaderky]

Backport from #6271

[github-actions[bot]]

Unit Test Results

See test report for an extended history of previous test failures. This is useful for diagnosing flaky tests.

     16 files  +         1       16 suites  +1   26m 24s :stopwatch: - 5h 45m 2s      72 tests  -   2 920       71 :heavy_check_mark:  -   2 829    1 :zzz:  -   88  0 :x:  - 2  1 152 runs   - 21 038  1 100 :heavy_check_mark:  - 20 036  52 :zzz:  - 999  0 :x:  - 2 

Results for commit b83a6ce6. ± Comparison against base commit cb45c610.