Clean up long lived token on hub

[fxiang1]

• I have taken backward compatibility into consideration.

• Delete the old secret containing the long lived token on the hub cluster

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fxiang1

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[fxiang1]

/uncc @chenz4027 @rokej

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 55.68%. Comparing base (2bc32e9) to head (e0a297c).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #426      +/-   ##
==========================================
+ Coverage   55.61%   55.68%   +0.06%     
==========================================
  Files          96       96              
  Lines       15727    15742      +15     
==========================================
+ Hits         8747     8766      +19     
+ Misses       6100     6094       -6     
- Partials      880      882       +2     

Flag	Coverage Δ
unit	55.68% <ø> (+0.06%)	⬆️

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[xiangjingli]

/lgtm