test: Enable hot reloading in password files

[siegfriedweber]

Description

Re-enable hot reloading in password files

Part of #834

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
• Helm chart can be installed and deployed operator works
• Integration tests passed (for non trivial changes)
• Changes need to be "offline" compatible
• Release note snippet added: test: Enable hot reloading in password files #868 (comment)

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
• Links to generated (nightly) docs added
• Release note snippet added
• Add type/deprecation label & add to the deprecation schedule
• Add type/experimental label & add to the experimental features tracker

[siegfriedweber]

Release notes

Platform fixes

Trino

• In the last release, hot-reloading of password file Secrets did not work anymore because a change to the Secret triggered a restart of the pods. With this release, the password file Secrets are excluded from the restarter controller and hot-reloading is supported again.

[Techassi]

LGTM, just two minor comments.