test/sys/progress_bar: temporary printout to debug flaky test #20763
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Contribution description
tests/sys/progress_bar
is apparently flaky onsamr21-xpro
and lets our nightlies fail :(this PR adds a printout that may help debug the problem by seeing whether it always fails at the same progress value
Testing procedure
Wait for the next couple of nightlies
Issues/PRs references
See https://ci.riot-os.org/details/762147886d354ad5ad6308e93898d046/tests for a failed and https://ci.riot-os.org/details/fa7f9c6149fc4e5ba9e3db1627e611a3/tests/tests:sys:progress_bar for the last successful run.