ci: detect existing minio operator installations correctly - cherry pick to v0.67

[nathanklick]

Description

This pull request updates configuration and setup scripts related to Kubernetes and Solo cluster deployments. The main focus is on improving the detection of the MinIO operator, adjusting cluster setup commands, and standardizing environment variables.

Kubernetes and Solo cluster setup improvements:

• Updated the MinIO operator detection logic in .github/workflows/support/citr/Taskfile.citr.yml to check for pods (instead of services) with the appropriate labels, making the check more reliable.
• Modified the Solo cluster setup command to always include the --no-prometheus-stack flag, preventing Prometheus stack installation in those cases.

Environment variable standardization:

• Changed the default value of SOLO_CLUSTER_RELEASE_NAME from cluster_name to solo-cluster-setup in .github/workflows/support/citr/Taskfile.yml for consistency across deployments.

Related Issues

Fixes #21907

[lfdt-bot]

:white_check_mark: Snyk checks have passed. No issues have been found so far.

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[codecov[bot]]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests.

@@               Coverage Diff               @@
##             release/0.67   #21909   +/-   ##
===============================================
  Coverage           71.31%   71.31%           
  Complexity          24361    24361           
===============================================
  Files                2664     2664           
  Lines              103756   103756           
  Branches            10842    10842           
===============================================
  Hits                73993    73993           
  Misses              25714    25714           
  Partials             4049     4049           

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[codacy-production[bot]]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
:white_check_mark: +0.00% (target: -1.00%)	:white_check_mark: ∅

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (ff2fa2e1400f0da65a2d0c5ea7cda691ab58040d)	103661	77998	75.24%
Head commit (d74d284b7ea68c0f17c806df09139160894a1737)	103661 (+0)	77998 (+0)	75.24% (+0.00%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#21909)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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[andrewb1269]

There are additional changes that need to also be cherry picked to the release/0.67 branch if we plan to merge this PR.

See the failed SDPT here and SDLT here.