fix: Pull the MinIO test image from quay

[ntkathole]

What this PR does / why we need it:

The minio_registry tests use MinioContainer() from testcontainers, which defaults to minio/minio:RELEASE.2022-12-02T19-19-22Z on Docker Hub. That image is no longer pullable (access denied / repo removed).

Changed CI to pull quay.io/minio/minio:RELEASE.2025-09-07T16-13-09Z instead of Docker Hub.

[codecov-commenter]

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 47.11%. Comparing base (922db5c) to head (46640dd).
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Additional details and impacted files

@@           Coverage Diff           @@
##           master    #6838   +/-   ##
=======================================
  Coverage   47.11%   47.11%           
=======================================
  Files         419      419           
  Lines       51886    51886           
  Branches     7528     7528           
=======================================
  Hits        24448    24448           
  Misses      25688    25688           
  Partials     1750     1750           

Flag	Coverage Δ
go-feature-server	30.58% <ø> (ø)
python-unit	48.42% <ø> (ø)

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