build: INFENG-943: GoReleaser configure prerelease

[davidfluck-hpe]

Ticket

INFENG-943

Description

Set prerelease: auto in both Helm GoReleaser configs. GoReleaser will make intelligent decisions based on the tag and avoid setting release candidate Helm chart releases as "latest".

I'm not sure how this plays with the make_latest option, which also exists and is set to true by default, but marking a release as a pre-release (in GitHub) also turns off the "latest" flag, so I guess we'll see.

Test Plan

We'll have to do it live.

Checklist

• Changes have been manually QA'd
• New features have been approved by the corresponding PM
• User-facing API changes have the "User-facing API Change" label
• Release notes have been added as a separate file under docs/release-notes/
  See Release Note for details.
• Licenses have been included for new code which was copied and/or modified from any external code

[netlify]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.25%. Comparing base (5ea169c) to head (cf1b0e8).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10146      +/-   ##
==========================================
- Coverage   54.27%   54.25%   -0.03%     
==========================================
  Files        1259     1259              
  Lines      157257   157257              
  Branches     3642     3642              
==========================================
- Hits        85355    85314      -41     
- Misses      71769    71810      +41     
  Partials      133      133              

Flag	Coverage Δ
backend	45.87% <ø> (-0.08%)	⬇️
harness	71.15% <ø> (ø)
web	54.29% <ø> (ø)

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see 6 files with indirect coverage changes