chore: set version to v0.2.0

Author: github-actions[bot]

CHANGELOG.md

@@ -0,0 +1,20 @@
+### What's changed in v0.2.0
+
+* feat: istio source toggle and platform-default secret store (by @patrickleet)
+
+  Adds spec.externalDNS.istio.enabled (defaults false). When on, ExternalDNS
+  also watches istio-virtualservice and istio-gateway sources so Knative-on-
+  Istio (and other Istio-routed) services auto-publish per-host DNS records
+  without overrideAllValues gymnastics.
+
+  Sources are now computed once in state-init instead of being hard-coded in
+  the helm values block with the user's values appended below — this removes
+  the duplicate-key YAML pattern that silently dropped overrides.
+
+  Defaults externalSecrets.secretStoreRef.name to "hops-aws-secrets-manager"
+  (the platform-wide ClusterSecretStore composed by aws-secret-stack), so
+  consumer manifests only declare the AWS Secrets Manager path, not the
+  backend reference.
+
+
+See full diff: [v0.1.2...v0.2.0](https://github.com/hops-ops/cloudflare-dns-stack/compare/v0.1.2...v0.2.0)