re-enabled FDB-491 test

[danovaro]

Description

Contributor Declaration

By opening this pull request, I affirm the following:

• All authors agree to the Contributor License Agreement.
• The code follows the project's coding standards.
• I have performed self-review and added comments where needed.
• I have added or updated tests to verify that my changes are effective and functional.
• I have run all existing tests and confirmed they pass.

🌈🌦️📖🚧 Documentation Z3FDB 🚧📖🌦️🌈
https://sites.ecmwf.int/docs/dev-section/z3fdb/pull-requests/PR-197

🌈🌦️📖🚧 Documentation FDB 🚧📖🌦️🌈
https://sites.ecmwf.int/docs/dev-section/fdb/pull-requests/PR-197

[ChrisspyB]

remove comment if you merge.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.48%. Comparing base (156dd71) to head (3a8bffb).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #197      +/-   ##
===========================================
+ Coverage    72.46%   72.48%   +0.02%     
===========================================
  Files          360      360              
  Lines        21693    21693              
  Branches      2240     2239       -1     
===========================================
+ Hits         15719    15724       +5     
+ Misses        5974     5969       -5     

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