Use chart-releaser-action tag v1.6.0

[Arkaniad]

Context: #3427 (comment)

Try tagged version of chart-releaser-action now that mark_latest option is available

Pull Request Checklist

• I have added Go unit tests or Complement integration tests for this PR or I have justified why this PR doesn't need tests
• Pull request includes a sign off below using a legally identifiable name or I have already signed off privately

Signed-off-by: Rhea Danzey <rdanzey@element.io>

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.27%. Comparing base (763c79f) to head (cfbed40).
Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3429      +/-   ##
==========================================
- Coverage   68.30%   68.27%   -0.03%     
==========================================
  Files         513      513              
  Lines       47026    47026              
==========================================
- Hits        32121    32107      -14     
- Misses      10904    10916      +12     
- Partials     4001     4003       +2     

Flag	Coverage Δ
unittests	53.26% <ø> (-0.09%)	⬇️

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[S7evinK]

Uargh... /me bumps helm version to allow CI to run..

[S7evinK]

Now, this worked. :) f2db7cb