update helm chart to use Beyla 1.8.4

[mariomac]

No description provided.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.72%. Comparing base (fb3b304) to head (609062c).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1223      +/-   ##
==========================================
+ Coverage   79.78%   81.72%   +1.93%     
==========================================
  Files         137      137              
  Lines       11483    11483              
==========================================
+ Hits         9162     9384     +222     
+ Misses       1781     1560     -221     
+ Partials      540      539       -1     

Flag	Coverage Δ
integration-test	60.73% <ø> (+0.35%)	⬆️
k8s-integration-test	58.25% <ø> (-0.02%)	⬇️
oats-test	36.08% <ø> (?)
unittests	53.03% <ø> (ø)

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