fix: Don't always return an error stating volumeMounts are colliding

[sbernauer]

Description

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1. Changes are OpenShift compatible
2. CRD changes approved
3. Integration tests passed (for non trivial changes)

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1. Code contains useful comments
2. (Integration-)Test cases added
3. Documentation added or updated
4. Changelog updated
5. Cargo.toml only contains references to git tags (not specific commits or branches)

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1. Feature Tracker has been updated
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[NickLarsenNZ]

LGTM

[NickLarsenNZ]

LGTM