Update toolkit components

- helm-controller to v1.5.4
  https://github.com/fluxcd/helm-controller/blob/v1.5.4/CHANGELOG.md
- kustomize-controller to v1.8.4
  https://github.com/fluxcd/kustomize-controller/blob/v1.8.4/CHANGELOG.md
- source-controller to v1.8.3
  https://github.com/fluxcd/source-controller/blob/v1.8.3/CHANGELOG.md
- notification-controller to v1.8.4
  https://github.com/fluxcd/notification-controller/blob/v1.8.4/CHANGELOG.md
- image-automation-controller to v1.1.2
  https://github.com/fluxcd/image-automation-controller/blob/v1.1.2/CHANGELOG.md

Signed-off-by: GitHub <noreply@github.com>

go.mod

@@ -13,11 +13,11 @@ require (
 	github.com/distribution/distribution/v3 v3.1.0
 	github.com/fluxcd/cli-utils v0.37.2-flux.1
 	github.com/fluxcd/go-git-providers v0.26.0
-	github.com/fluxcd/helm-controller/api v1.5.3
-	github.com/fluxcd/image-automation-controller/api v1.1.1
+	github.com/fluxcd/helm-controller/api v1.5.4
+	github.com/fluxcd/image-automation-controller/api v1.1.2
 	github.com/fluxcd/image-reflector-controller/api v1.1.1
-	github.com/fluxcd/kustomize-controller/api v1.8.3
-	github.com/fluxcd/notification-controller/api v1.8.3
+	github.com/fluxcd/kustomize-controller/api v1.8.4
+	github.com/fluxcd/notification-controller/api v1.8.4
 	github.com/fluxcd/pkg/apis/event v0.25.0
 	github.com/fluxcd/pkg/apis/meta v1.26.0
 	github.com/fluxcd/pkg/auth v0.40.0
@@ -32,7 +32,7 @@ require (
 	github.com/fluxcd/pkg/ssh v0.24.0
 	github.com/fluxcd/pkg/tar v0.17.0
 	github.com/fluxcd/pkg/version v0.14.0
-	github.com/fluxcd/source-controller/api v1.8.2
+	github.com/fluxcd/source-controller/api v1.8.3
 	github.com/fluxcd/source-watcher/api/v2 v2.1.1
 	github.com/go-git/go-git/v5 v5.18.0
 	github.com/go-logr/logr v1.4.3