account_project: retry delete on 412

[Codelax]

Extracted from our nightly tests:

2024-02-28T00:46:54.0705722Z --------------- Scaleway SDK RESPONSE 20 : ---------------
2024-02-28T00:46:54.0706131Z HTTP/1.0 412 Precondition Failed
2024-02-28T00:46:54.0706446Z Connection: close
2024-02-28T00:46:54.0706727Z Content-Length: 255
2024-02-28T00:46:54.0707192Z Content-Security-Policy: default-src 'none'; frame-ancestors 'none'
2024-02-28T00:46:54.0707711Z Content-Type: application/json
2024-02-28T00:46:54.0708038Z Date: Wed, 28 Feb 2024 00:46:37 GMT
2024-02-28T00:46:54.0708454Z Server: Scaleway API Gateway (fr-par-3;edge02)
2024-02-28T00:46:54.0708909Z Strict-Transport-Security: max-age=63072000
2024-02-28T00:46:54.0709317Z X-Content-Type-Options: nosniff
2024-02-28T00:46:54.0709658Z X-Frame-Options: DENY
2024-02-28T00:46:54.0710179Z X-Request-Id: 9d7ab9f5-4c3d-4d54-8b08-097c7d900b6f
2024-02-28T00:46:54.0710464Z 
2024-02-28T00:46:54.0711668Z {"help_message":"an unexpected error happened when checking if project \"18edeb00-09aa-4180-8318-acefb5be9cb7\" has resources, please retry later","message":"precondition is not respected","precondition":"resource_not_usable","type":"precondition_failed"}
2024-02-28T00:46:54.0713102Z ----------------------------------------------------------

We need to retry on 412