Bump fluxcd/helm-controller to latest release (#5180)

Author: eks-distro-pr-bot

UPSTREAM_PROJECTS.yaml

@@ -109,8 +109,8 @@ projects:
             go_version: "1.26"
       - name: helm-controller
         versions:
-          - tag: v1.4.5
-            go_version: "1.25"
+          - tag: v1.5.3
+            go_version: "1.26"
       - name: kustomize-controller
         versions:
           - tag: v1.7.3