feat(github-release): update fluxcd/flux2 to v0.39.0 (#625)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Devin Buhl <onedr0p@users.noreply.github.com>

kubernetes/bootstrap/kustomization.yaml

@@ -2,7 +2,7 @@
 apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
-  - github.com/fluxcd/flux2/manifests/install?ref=v0.38.3
+  - github.com/fluxcd/flux2/manifests/install?ref=v0.39.0
 patches:
   - patch: |-
       $patch: delete

kubernetes/flux/config/flux.yaml

@@ -8,7 +8,7 @@ spec:
   interval: 10m
   url: oci://ghcr.io/fluxcd/flux-manifests
   ref:
-    tag: v0.38.3
+    tag: v0.39.0
 ---
 apiVersion: kustomize.toolkit.fluxcd.io/v1beta2
 kind: Kustomization