remove docker/distribution replace from go.mod

[kranurag7]

🔎 Scanning "packages/x86_64/argocd-image-updater-0.15.1-r0.apk"
└── 📄 /usr/bin/argocd-image-updater
        📦 github.com/docker/distribution v2.8.1+incompatible (go-module)
            High CVE-2023-2253 GHSA-hqxw-f8mx-cpmw fixed in 2.8.2-beta.1

context: I'm packaging it here and this is being flagged out as a CVE by the scanner.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.42%. Comparing base (4f0141a) to head (830e577).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #969   +/-   ##
=======================================
  Coverage   72.42%   72.42%           
=======================================
  Files          27       27           
  Lines        3725     3725           
=======================================
  Hits         2698     2698           
  Misses        885      885           
  Partials      142      142           

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