Update test values with newer tags

charts/chia/1.2.1/test_values.yaml

 image:
   repository: ghcr.io/chia-network/chia
-  tag: 1.1.4
+  tag: 1.1.6
   pullPolicy: IfNotPresent
 updateStrategy: Recreate
 

charts/minio/1.3.0/test_values.yaml

@@ -2,7 +2,7 @@
 ##
 image:
   repository: minio/minio
-  tag: RELEASE.2021-02-19T04-38-02Z
+  tag: RELEASE.2021-04-06T23-11-00Z
   pullPolicy: IfNotPresent
 
 ## Additional arguments to pass to minio binary

charts/nextcloud/1.3.0/test_values.yaml

@@ -3,7 +3,7 @@
 ##
 image:
   repository: nextcloud
-  tag: 19.0.3-apache
+  tag: 21.0.2
   pullPolicy: IfNotPresent
 
 nextcloud:

charts/plex/1.6.1/test_values.yaml

@@ -6,7 +6,7 @@
 
 image:
   repository: plexinc/pms-docker
-  tag: 1.20.2.3402-0fec14d92
+  tag: 1.23.2.4656-85f0adf5b
   pullPolicy: IfNotPresent
 
 #####   START  --> Official PLEX container environment variables