fix: Fix helm-docs failure in release.yml

[ntkathole]

What this PR does / why we need it:

Fix https://github.com/feast-dev/feast/actions/runs/27455652218/job/81159643119

Problems

• Homebrew/actions/setup-homebrew@master is deprecated - must use main

• Bubblewrap (bwrap) is missing on the runner - Homebrew's Linux sandbox requires it. Either install it or set HOMEBREW_NO_SANDBOX_LINUX=1.

• norwoodj/tap is untrusted - need to run brew trust norwoodj/tap before installing from it.

[codecov-commenter]

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 45.86%. Comparing base (10341e4) to head (3ffe587).
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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6511      +/-   ##
==========================================
- Coverage   45.86%   45.86%   -0.01%     
==========================================
  Files         412      412              
  Lines       48763    48763              
  Branches     6913     6913              
==========================================
- Hits        22367    22366       -1     
  Misses      24849    24849              
- Partials     1547     1548       +1     

Flag	Coverage Δ
go-feature-server	30.58% <ø> (ø)
python-unit	47.16% <ø> (-0.01%)	⬇️
see 1 file with indirect coverage changes

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