fix(dex): always request federated:id scope (#17908)

[agaudreault]

Fixes #17908

[bunnyshell]

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[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 2 lines in your changes missing coverage. Please review.

Project coverage is 53.61%. Comparing base (85c6d26) to head (884f40b).
Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
pkg/apiclient/apiclient.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #21726      +/-   ##
==========================================
- Coverage   53.65%   53.61%   -0.05%     
==========================================
  Files         340      340              
  Lines       57417    57419       +2     
==========================================
- Hits        30808    30784      -24     
- Misses      23956    23986      +30     
+ Partials     2653     2649       -4     

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