apps: fix k8s kustomization versions

apps/code/gitea/kustomization.yaml

-apiVersion: kustomize.config.k8s.io/v1
+apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - gitea-release.yaml

apps/do/do-test/kustomization.yaml

-apiVersion: kustomize.config.k8s.io/v1
+apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - vikunja-oauth-client.yaml

apps/do/vikunja/kustomization.yaml

-apiVersion: kustomize.config.k8s.io/v1
+apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - vikunja-oauth-client.yaml

apps/generate-kustomizations.sh

@@ -2,7 +2,7 @@
 # Generates kubernetes kustomizations
 if test $# -gt 0
 then dir=$1
-	{ echo 'apiVersion: kustomize.config.k8s.io/v1
+	{ echo 'apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:'
 	find $dir -maxdepth 1 -type f -name "*.yaml" -not -name "kustomization.yaml" -printf "  - %f\n"; } | tee $dir/kustomization.yaml

apps/kustomization.yaml

-apiVersion: kustomize.config.k8s.io/v1
+apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - ninja-kustomization.yaml

apps/ninja/invoiceninja-secrets/kustomization.yaml

-apiVersion: kustomize.config.k8s.io/v1
+apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - invoiceninja-variables.yaml

apps/ninja/invoiceninja/kustomization.yaml

-apiVersion: kustomize.config.k8s.io/v1
+apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - invoiceninja-mariadb-pvc.yaml

apps/people/suitecrm/kustomization.yaml

-apiVersion: kustomize.config.k8s.io/v1
+apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - suitecrm-values-configmap.yaml