Fixed deprecated gdalnumeric import.

Signed-off-by: Daniel Scheffler <danschef@gfz-potsdam.de>
6 jobs for master in 46 minutes and 58 seconds (queued for 6 seconds)
Status Name Job ID Coverage
  Test
passed test_sensormapgeo #90759

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passed test_sensormapgeo_install #90762

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passed test_styles #90760

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passed test_urls #90761

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  Deploy
passed pages #90763

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passed pages:deploy

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