Bump spire-agent image to 1.6.0 (arm64 support)

Signed-off-by: Marco Franssen <[email protected]>

charts/spire/charts/spire-agent/README.md

@@ -2,10 +2,14 @@
 
 <!-- This README.md is generated. Please edit README.md.gotmpl -->
 
-![Version: 0.1.0](https://img.shields.io/badge/Version-0.1.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 1.5.4](https://img.shields.io/badge/AppVersion-1.5.4-informational?style=flat-square)
+![Version: 0.1.0](https://img.shields.io/badge/Version-0.1.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 1.6.0](https://img.shields.io/badge/AppVersion-1.6.0-informational?style=flat-square)
 
 A Helm chart to install the SPIRE agent.
 
+> **Note**: Minimum Spire version is `1.5.3`.
+> The recommended version is `1.6.0` to support arm64 nodes. If running with any
+> prior version to `1.6.0` you have to use a `nodeSelector` to limit to `kubernetes.io/arch: amd64`.
+
 ## Values
 
 | Key | Type | Default | Description |
@@ -21,7 +25,7 @@ A Helm chart to install the SPIRE agent.
 | imagePullSecrets | list | `[]` |  |
 | logLevel | string | `"info"` |  |
 | nameOverride | string | `""` |  |
-| nodeSelector."kubernetes.io/arch" | string | `"amd64"` |  |
+| nodeSelector | object | `{}` |  |
 | podAnnotations | object | `{}` |  |
 | podSecurityContext | object | `{}` |  |
 | priorityClassName | string | `""` | Priority class assigned to daemonset pods |