Update changelog for v3.3.0
## HEAD (Unreleased)
+## 3.3.0 (May 26, 2021)
+
- Automatically mark Secret data as Pulumi secrets. (https://github.com/pulumi/pulumi-kubernetes/pull/1577)
- Update pulumi dependency (https://github.com/pulumi/pulumi-kubernetes/pull/1588)
- [codegen] Automatically encrypt secret input parameters (https://github.com/pulumi/pulumi/pull/7128)
