Allow the export api to be called without login

[raymondz1]

What this PR does / why we need it

Allow the export api to be called without login.

Which issue(s) this PR fixes

Fixes #

Describe testing done for PR

Release note

Additional information

Special notes for your reviewer

[github-actions]

Cluster Generation A/B Results:
https://storage.googleapis.com/tkg-clustergen/4532/20230329191219/clustergen.diff.txt
Author/reviewers:
Please review to verify that the effects on the generated cluster configurations are exactly what the PR intended, and give a thumbs-up if so.

[codecov]

Codecov Report

Merging #4532 (cc02fdc) into main (fe8dd98) will decrease coverage by 0.85%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #4532      +/-   ##
==========================================
- Coverage   49.82%   48.97%   -0.85%     
==========================================
  Files         453      483      +30     
  Lines       45395    47515    +2120     
==========================================
+ Hits        22617    23270     +653     
- Misses      20626    22048    +1422     
- Partials     2152     2197      +45     

see 35 files with indirect coverage changes

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.