Update chia to the TruePool.io / iXsystems sponsored image which

includes pooled plot support in pre-release.

charts/chia/1.2.2/Chart.yaml

 apiVersion: v1
-appVersion: 1.1.7
+appVersion: 1.2.0-pre2
 dependencies:
 - name: common
   repository: file://../../../library/common/2105.0.0

charts/chia/1.2.2/ix_values.yaml

 image:
   pullPolicy: IfNotPresent
-  repository: ghcr.io/chia-network/chia
-  tag: 1.1.7
+  repository: ixsystems/chia-docker
+  tag: 1.2.0-pre2
 updateStrategy: Recreate

charts/chia/1.2.2/questions.yaml

@@ -4,6 +4,14 @@ groups:
   - name: "Chia Environment Variables"
     description: "Set the environment that will be visible to the container"
 
+portals:
+  web_portal:
+    protocols:
+      - "https"
+    host:
+      - "www.truepool.io"
+    path: "/kb/truepool-docker-image/"
+
 questions:
   - variable: appVolumeMounts
     label: "Chia Storage"