chore(ci): grant contents permission in docs publishing workflow

[danielpacak]

Signed-off-by: Daniel Pacak pacak.daniel@gmail.com

[codecov]

Codecov Report

Merging #1121 (7ee6b23) into main (4b206c2) will increase coverage by 0.15%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1121      +/-   ##
==========================================
+ Coverage   57.91%   58.06%   +0.15%     
==========================================
  Files          71       71              
  Lines        9290     9290              
==========================================
+ Hits         5380     5394      +14     
+ Misses       3361     3350      -11     
+ Partials      549      546       -3     

Impacted Files	Coverage Δ
pkg/operator/controller/ciskubebenchreport.go	52.58% <0.00%> (+1.59%)	⬆️
pkg/vulnerabilityreport/controller.go	58.84% <0.00%> (+3.04%)	⬆️

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