PixelCalibAlgs: A number of fixes for the tests.

Scott Snyderrequested to merge
ssnyder/athena:test.PixelCalibAlgs-20250314 into main

In makeInactiveModuleList: Fix bad casting for histograms read from ROOT. Was not reading all the histograms, because directories were being included in counts. Remove redundant map lookups, giving a dramatic speedup.

Also fix a typo in the cmake file and increase the test timeout.

Fixes test failure seen in the dbg build.

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