chore(deps): upgrade jenkins-x-plugins/jx-preview to version 0.7.3

[jenkins-x-bot-test]

from: https://github.com/jenkins-x-plugins/jx-preview

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 32.11%. Comparing base (3d04283) to head (7db3b5f).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8929      +/-   ##
==========================================
- Coverage   34.77%   32.11%   -2.67%     
==========================================
  Files          10       10              
  Lines         946     1174     +228     
==========================================
+ Hits          329      377      +48     
- Misses        574      754     +180     
  Partials       43       43              

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