Flaky test: TestMinimizeSpreadTokenGenerator

[danielblando]

Describe the bug

--- FAIL: TestMinimizeSpreadTokenGenerator (6.95s)
    token_generator_test.go:202: 
        	Error Trace:	/__w/cortex/cortex/pkg/ring/token_generator_test.go:202
        	            				/__w/cortex/cortex/pkg/ring/token_generator_test.go:106
        	Error:      	Condition failed!
        	Test:       	TestMinimizeSpreadTokenGenerator
        	Messages:   	[minimize-22-zone1] expected and real distance error is greater than 0.01 -> 0.010537365786974728[8.2595524e+07/8.3475132e+07]
FAIL

Noticed here:
https://github.com/cortexproject/cortex/actions/runs/13140596180/job/36666597646

Expected behavior
No error

[stale]

This issue has been automatically marked as stale because it has not had any activity in the past 60 days. It will be closed in 15 days if no further activity occurs. Thank you for your contributions.

[yeya24]

Fixed by #6768.