Remove old storagebox code (using hetzner_user)

[felixfontein]

SUMMARY

• Deprecate hetzner_user/hetzner_pass; hetzner_token will be required in the future; moved to Storagebox: deprecate hetzner_user, deprecate compatibility shim return values #178
• Deprecate membership in robot action group; moved to Storagebox: deprecate hetzner_user, deprecate compatibility shim return values #178
• Remove dead code and make module fail directly (or exit with "storagebox not found"?);
• Deprecate fake return values. moved to Storagebox: deprecate hetzner_user, deprecate compatibility shim return values #178

ISSUE TYPE

• Feature Pull Request

COMPONENT NAME

storagebox* modules

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.92%. Comparing base (15f833a) to head (403f82a).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #173      +/-   ##
==========================================
- Coverage   99.93%   99.92%   -0.01%     
==========================================
  Files          61       61              
  Lines        4725     4106     -619     
  Branches      519      431      -88     
==========================================
- Hits         4722     4103     -619     
  Misses          2        2              
  Partials        1        1              

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[felixfontein]

The last TODO item is blocked by ansible/ansible#85614; I might just move it to a follow-up PR and first get the others merged (and released).

[felixfontein]

Hmm, according to https://robot.hetzner.com/doc/webservice/en.html#get-storagebox the old API is still there for some specific storage boxes. So let's wait with merging this until the API has been fully removed.

[felixfontein]

@jooola @apricote do you know for how much longer the old API will still be around for BX10 storage boxes?