feat(iam): add support for SAML

[scaleway-bot]

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[codecov-commenter]

Codecov Report

❌ Patch coverage is 72.03390% with 66 lines in your changes missing coverage. Please review.
✅ Project coverage is 56.29%. Comparing base (5bf53e0) to head (cab57d8).
⚠️ Report is 852 commits behind head on master.

Files with missing lines	Patch %	Lines
internal/namespaces/iam/v1alpha1/iam_cli.go	72.03%	59 Missing and 7 partials ⚠️

❗ There is a different number of reports uploaded between BASE (5bf53e0) and HEAD (cab57d8). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (5bf53e0)	HEAD (cab57d8)
	2	1

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #5060       +/-   ##
===========================================
- Coverage   75.45%   56.29%   -19.17%     
===========================================
  Files         202      307      +105     
  Lines       44323    78550    +34227     
===========================================
+ Hits        33444    44219    +10775     
- Misses       9653    32897    +23244     
- Partials     1226     1434      +208     

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