chore: upgrade dex to distroless avoid CVE-2022-2097/CVE-2022-30065

[34fathombelow]

This PR avoids CVE-2022-2097/CVE-2022-30065. As of dex:v2.32.0 they now provide distroless images. Another alternative would be to upgrade to http://ghcr.io/dexidp/dex:v2.33.0 although this PR may introduce some buggy behavior for our users.

I don't see any binaries that argocd-dex depends on, using a distroless image in this case should be fine.

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

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[codecov]

Codecov Report

Merging #10203 (1fe034d) into master (fc15731) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #10203   +/-   ##
=======================================
  Coverage   45.93%   45.93%           
=======================================
  Files         227      227           
  Lines       27419    27419           
=======================================
  Hits        12594    12594           
  Misses      13114    13114           
  Partials     1711     1711           

Impacted Files	Coverage Δ
util/settings/settings.go	50.90% <0.00%> (ø)

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[crenshaw-dev]

lgtm, thanks @34fathombelow!