fix: assignment to nil map

[leonsteinhaeuser]

Description

Fixed assignment to nil map.

panic: assignment to entry in nil map [recovered]
	panic: assignment to entry in nil map
goroutine 193 [running]:
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Reconcile.func1()
	/home/runner/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:116 +0x1e5
panic({0x17bf240?, 0x1c537d0?})
	/opt/hostedtoolcache/go/1.21.7/x64/src/runtime/panic.go:914 +0x21f
github.com/urbanmedia/passbolt-operator/pkg/util.UpdateSecret.func1()
	/home/runner/work/passbolt-operator/passbolt-operator/pkg/util/secret.go:67 +0x865
sigs.k8s.io/controller-runtime/pkg/controller/controllerutil.mutate(0xc0074bf400?, {{0xc0000513b0?, 0x0?}, {0xc000536ca0?, 0x1c70f68?}}, {0x1c84040, 0xc0074bf400})
	/home/runner/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/controller/controllerutil/controllerutil.go:426 +0x49
sigs.k8s.io/controller-runtime/pkg/controller/controllerutil.CreateOrUpdate({0x1c70f68, 0xc007269440}, {0x1c79560, 0xc0001286c0}, {0x1c84040?, 0xc0074bf400}, 0xc0000513b0?)
	/home/runner/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/controller/controllerutil/controllerutil.go:292 +0x246
github.com/urbanmedia/passbolt-operator/internal/controller.(*PassboltSecretReconciler).Reconcile(0xc0003a8040, {0x1c70f68, 0xc007269440}, {{{0xc0000513b0, 0x14}, {0xc000536ca0, 0x19}}})
	/home/runner/work/passbolt-operator/passbolt-operator/internal/controller/passboltsecret_controller.go:113 +0x869
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Reconcile(0x1c743c0?, {0x1c70f68?, 0xc007269440?}, {{{0xc0000513b0?, 0xb?}, {0xc000536ca0?, 0x0?}}})
	/home/runner/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:119 +0xb7
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler(0xc0003a2000, {0x1c70fa0, 0xc00009c8c0}, {0x183e520?, 0xc0005943e0?})
	/home/runner/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:316 +0x3cc
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem(0xc0003a2000, {0x1c70fa0, 0xc00009c8c0})
	/home/runner/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:266 +0x1af
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2()
	/home/runner/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:227 +0x79
created by sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2 in goroutine 151
	/home/runner/go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:223 +0x565

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings