update upgrade test to use v1.5

[zirain]

xref: #6730

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.00%. Comparing base (a1158f9) to head (80f0560).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6741      +/-   ##
==========================================
- Coverage   71.01%   71.00%   -0.02%     
==========================================
  Files         224      224              
  Lines       39621    39621              
==========================================
- Hits        28137    28132       -5     
- Misses       9820     9828       +8     
+ Partials     1664     1661       -3     

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