feat: expand the spark connect test to write to S3

[razvan]

• feat: add MinIO user secrets, deployment, and client configuration for Spark Connect
• connect test is now passing
• add s3 comments

Description

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Definition of Done Checklist

• Not all of these items are applicable to all PRs, the author should update this template to only leave the boxes in that are relevant
• Please make sure all these things are done and tick the boxes

Author

• Changes are OpenShift compatible
• CRD changes approved
• CRD documentation for all fields, following the style guide.
• Helm chart can be installed and deployed operator works
• Integration tests passed (for non trivial changes)
• Changes need to be "offline" compatible

Reviewer

• Code contains useful comments
• Code contains useful logging statements
• (Integration-)Test cases added
• Documentation added or updated. Follows the style guide.
• Changelog updated
• Cargo.toml only contains references to git tags (not specific commits or branches)

Acceptance

• Feature Tracker has been updated
• Proper release label has been added
• Roadmap has been updated

[razvan]

--- PASS: kuttl (110.66s)
    --- PASS: kuttl/harness (0.00s)
        --- PASS: kuttl/harness/spark-connect_openshift-false_spark-connect-3.5.5_spark-connect-client-3.5.5 (110.64s)
PASS