🥑🤖 v1.21.0 release prep (#962)

* 🥑🤖 v1.21.0 release prep 🤖🥑

* update k8s compatibility table

---------

Co-authored-by: ec2-bot 🤖 <ec2-bot@users.noreply.github.com>

Author: cjerad

README.md

@@ -81,14 +81,10 @@ Must be deployed as a Kubernetes **Deployment**. Also requires some **additional
 
 ### Kubernetes Compatibility
 
-|                                      NTH Release                                      | K8s v1.28 | K8s v1.27 | K8s v1.26 | K8s v1.25 | K8s v1.24 | K8s v1.23 | K8s v1.22 | K8s v1.21 |
-| :-----------------------------------------------------------------------------------: | :-------: | :-------: | :-------: | :-------: | :-------: | :-------: | :-------: | :-------: |
-|  [v1.20.0](https://github.com/aws/aws-node-termination-handler/releases/tag/v1.20.0)  |     ✅    |     ✅    |     ✅    |     ✅    |    ✅     |    ✅    |    ✅     |    ❌    |
-|  [v1.19.0](https://github.com/aws/aws-node-termination-handler/releases/tag/v1.19.0)  |     ❌    |     ❌    |     ❌    |     ❌    |    ❌     |    ✅    |    ✅     |    ✅    |
-|  [v1.18.3](https://github.com/aws/aws-node-termination-handler/releases/tag/v1.18.3)  |     ❌    |     ❌    |     ❌    |     ❌    |    ❌     |    ✅    |    ✅     |    ✅    |
-|  [v1.18.2](https://github.com/aws/aws-node-termination-handler/releases/tag/v1.18.2)  |     ❌    |     ❌    |     ❌    |     ❌    |    ❌     |    ✅    |    ✅     |    ✅    |
-|  [v1.18.1](https://github.com/aws/aws-node-termination-handler/releases/tag/v1.18.1)  |     ❌    |     ❌    |     ❌    |     ❌    |    ❌     |    ✅    |    ✅     |    ✅    |
-|  [v1.18.0](https://github.com/aws/aws-node-termination-handler/releases/tag/v1.18.0)  |     ❌    |     ❌    |     ❌    |     ❌    |    ❌     |    ✅    |    ✅     |    ✅    |
+|                                      NTH Release                                      | K8s v1.28 | K8s v1.27 | K8s v1.26 | K8s v1.25 | K8s v1.24 |
+| :-----------------------------------------------------------------------------------: | :-------: | :-------: | :-------: | :-------: | :-------: |
+|  [v1.21.0](https://github.com/aws/aws-node-termination-handler/releases/tag/v1.21.0)  |     ✅    |     ✅    |     ✅    |     ✅    |    ✅     |
+|  [v1.20.0](https://github.com/aws/aws-node-termination-handler/releases/tag/v1.20.0)  |     ✅    |     ✅    |     ✅    |     ✅    |    ✅     |
 
 
 ## Installation and Configuration
@@ -127,7 +123,7 @@ When using Kubernetes [Pod Security Admission](https://kubernetes.io/docs/concep
 You can use kubectl to directly add all of the above resources with the default configuration into your cluster.
 
 ```
-kubectl apply -f https://github.com/aws/aws-node-termination-handler/releases/download/v1.20.0/all-resources.yaml
+kubectl apply -f https://github.com/aws/aws-node-termination-handler/releases/download/v1.21.0/all-resources.yaml
 ```
 
 For a full list of releases and associated artifacts see our [releases page](https://github.com/aws/aws-node-termination-handler/releases).
@@ -200,7 +196,7 @@ helm upgrade --install aws-node-termination-handler \
   oci://public.ecr.aws/aws-ec2/helm/aws-node-termination-handler --version $CHART_VERSION
 ```
 
-For a full list of configuration options see our [Helm readme](https://github.com/aws/aws-node-termination-handler/blob/v1.20.0/config/helm/aws-node-termination-handler#readme).
+For a full list of configuration options see our [Helm readme](https://github.com/aws/aws-node-termination-handler/blob/v1.21.0/config/helm/aws-node-termination-handler#readme).
 
 </details>
 
@@ -490,7 +486,7 @@ helm upgrade --install aws-node-termination-handler \
   oci://public.ecr.aws/aws-ec2/helm/aws-node-termination-handler --version $CHART_VERSION
 ```
 
-For a full list of configuration options see our [Helm readme](https://github.com/aws/aws-node-termination-handler/blob/v1.20.0/config/helm/aws-node-termination-handler#readme).
+For a full list of configuration options see our [Helm readme](https://github.com/aws/aws-node-termination-handler/blob/v1.21.0/config/helm/aws-node-termination-handler#readme).
 
 #### Single Instance vs Multiple Replicas
 
@@ -515,7 +511,7 @@ Queue Processor needs an **SQS queue URL** to function; therefore, manifest chan
 Minimal Config:
 
 ```
-curl -L https://github.com/aws/aws-node-termination-handler/releases/download/v1.20.0/all-resources-queue-processor.yaml -o all-resources-queue-processor.yaml
+curl -L https://github.com/aws/aws-node-termination-handler/releases/download/v1.21.0/all-resources-queue-processor.yaml -o all-resources-queue-processor.yaml
 <open all-resources-queue-processor.yaml and update QUEUE_URL value>
 kubectl apply -f ./all-resources-queue-processor.yaml
 ```

config/helm/aws-node-termination-handler/Chart.yaml

@@ -2,8 +2,8 @@ apiVersion: v2
 name: aws-node-termination-handler
 description: A Helm chart for the AWS Node Termination Handler.
 type: application
-version: 0.22.0
-appVersion: 1.20.0
+version: 0.23.0
+appVersion: 1.21.0
 kubeVersion: ">= 1.16-0"
 keywords:
   - aws