Remove `Optional` to Access Results in `ManagedDependentResourceContext`

[csviri]

https://github.com/java-operator-sdk/java-operator-sdk/blob/3280f69dbe85cf3baeb268de6f095c1ab3721498/operator-framework-core/src/main/java/io/javaoperatorsdk/operator/api/reconciler/dependent/managed/ManagedDependentResourceContext.java#L55-L57

Those does not make that much sense, since naturally these methods are only called when managed dependent resources are used. And this is not a decision for runtime. It should just throw an exception if these results are accessed but managed dependent resources are not initialized.

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[github-actions]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 14 days.

[github-actions]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 14 days.