Fix missing parameter in hook watch

[juldrixx]

#216 updated the dependentResourceWatcher struct to add the cache and the scheme, but did not initialize them even though they were passed on to creation.
The cache is therefore empty and the code crashs on here.

[stevekuznetsov]

/ok-to-test
/lgtm
/approve

[everettraven]

@juldrixx would you mind separating this into 2 PRs? One for the hook watch fix and one for the Go 1.21 bump? We tend to be more cautious when doing a Go bump as it can negatively impact projects that depend on this repository but might not be able to bump Go yet

[juldrixx]

@juldrixx would you mind separating this into 2 PRs? One for the hook watch fix and one for the Go 1.21 bump? We tend to be more cautious when doing a Go bump as it can negatively impact projects that depend on this repository but might not be able to bump Go yet

Sure

[openshift-ci]

New changes are detected. LGTM label has been removed.