sylva-units-operator can't patch events correctly

Same as workload-cluster-operator#76 (closed)

RBAC annotation is missing for the new api events.k8s.io

E0821 14:05:24.919283       1 event_broadcaster.go:270] "Server rejected event (will not retry!)" err="events.events.k8s.io is forbidden: User \"system:serviceaccount:sylva-units-operator-system:sylva-units-operator-controller-manager\" cannot create resource \"events\" in API group \"events.k8s.io\" in the namespace \"sylva-system\"" event="&Event{ObjectMeta:{sylva-units.18cdd717ee235935  sylva-system    0 0001-01-01 00:00:00 +0000 UTC <nil> <nil> map[] map[] [] [] []},EventTime:2026-08-21 14:05:24.915461943 +0000 UTC m=+177659.578699742,Series:nil,ReportingController:SylvaUnitsRelease,ReportingInstance:SylvaUnitsRelease-sylva-units-operator-controller-manager-749b9f8ddc-tjrm2,Action:Successfully reconciled SylvaUnitsRelease %s,Reason:ReconciliationSucceeded,Regarding:{SylvaUnitsRelease sylva-system sylva-units 44ddc312-23f4-4374-9487-852bd1a61428 unitsoperator.sylva/v1alpha1 3479613 },Related:nil,Note:sylva-units,Type:Normal,DeprecatedSource:{ },DeprecatedFirstTimestamp:0001-01-01 00:00:00 +0000 UTC,DeprecatedLastTimestamp:0001-01-01 00:00:00 +0000 UTC,DeprecatedCount:0,}"