chore: upgrade redis-ha chart to 4.17.8, HAProxy v2.6.2

[34fathombelow]

Follow up of #10032

Upstream chart 4.17.8 now includes HAProxy v2.6.2 by default. Previous version of HAProxy is EOL 2023-Q1.

Signed-off-by: Justin Marquis 34fathombelow@protonmail.com

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Checklist:

• Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this does not need to be in the release notes.
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[codecov]

Codecov Report

Merging #10297 (36231d2) into master (b38ff17) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #10297   +/-   ##
=======================================
  Coverage   46.13%   46.13%           
=======================================
  Files         228      228           
  Lines       27960    27960           
=======================================
  Hits        12900    12900           
  Misses      13314    13314           
  Partials     1746     1746           

Impacted Files	Coverage Δ
util/settings/settings.go	51.36% <0.00%> (ø)

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[crenshaw-dev]

Brilliant. Thanks as always, @34fathombelow!