datacube: fix class path issue for static web content

[github-actions[bot]]

Test Results

  1 022 files    1 022 suites   1h 22m 4s :stopwatch: 12 131 tests 12 041 :heavy_check_mark: 90 :zzz: 0 :x: 17 560 runs  17 470 :heavy_check_mark: 90 :zzz: 0 :x:

Results for commit 91fbafb9.