images: remove --bare flags that conflict with --base-import-paths

[cpanato]

Summary

• images: remove --bare flags that conflict with --base-import-paths
  if use both the --base-import-paths take precedence, so removing --bare

Ticket Link

Fixes

Release Note

NONE

[codecov-commenter]

Codecov Report

Merging #1533 (d1a4d08) into main (f1c0b71) will decrease coverage by 0.04%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1533      +/-   ##
==========================================
- Coverage   26.49%   26.44%   -0.05%     
==========================================
  Files         126      126              
  Lines        7214     7214              
==========================================
- Hits         1911     1908       -3     
- Misses       5093     5095       +2     
- Partials      210      211       +1     

Impacted Files	Coverage Δ
pkg/cosign/tuf/client.go	62.34% <0.00%> (-0.95%)	⬇️

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