feat(object): add support for 's3-endpoint' to bucket cmds

[pypaut]

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Closes #5568.

This PR depends on scaleway/scaleway-sdk-go#3100.

Release note for CHANGELOG:

Add an `s3-endpoint` flag to the bucket commands
Add support for `s3_endpoint` specified in the configuration profile

[codecov-commenter]

Codecov Report

❌ Patch coverage is 74.13793% with 15 lines in your changes missing coverage. Please review.
✅ Project coverage is 50.79%. Comparing base (68a9cb3) to head (fab68ff).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
internal/namespaces/object/v1/custom_bucket.go	77.77%	6 Missing and 6 partials ⚠️
internal/namespaces/object/v1/s3_helpers.go	25.00%	1 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5636      +/-   ##
==========================================
+ Coverage   50.78%   50.79%   +0.01%     
==========================================
  Files         340      340              
  Lines       77934    77971      +37     
==========================================
+ Hits        39577    39605      +28     
- Misses      36861    36865       +4     
- Partials     1496     1501       +5     

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[pypaut]

Doesn't build because it relies on an SDK version that is not live yet.