[FEATURE] Migrate to the official Upbound AWS provider (Product Catalog app)

This issue is for migrating from community AWS provider to the official Upbound AWS provider. The scope of this issue is the cloud resources needed for the same app (product catalog).

**Changes:**
1. Add the Upbound AWS provider for DynamoDB (product catalog API has a dependency on DDB table) -- this requires changes at `repos/gitops-system/tools/crossplane/` i.e. adding the provider installation manifests. A `Kustomization` has to be added under flux folder of the workload cluster `repos/gitops-system/clusters/template/` for reconciling the installation manifests.
2. Updating manifests at `repos/app-manifests/product-catalog-api-manifests\` to refer to the MRs of the new provider.