Update Contour Docker image to v1.20.0-beta.1.

Signed-off-by: Steve Kriss <krisss@vmware.com>

Author: skriss

config/manager/manager.yaml

@@ -20,8 +20,8 @@ spec:
         - /contour-operator
         args:
         - --enable-leader-election
-        image: ghcr.io/projectcontour/contour-operator:main
-        imagePullPolicy: Always
+        image: ghcr.io/projectcontour/contour-operator:v1.20.0-beta.1
+        imagePullPolicy: IfNotPresent
         name: contour-operator
         resources:
           requests:

examples/operator/operator.yaml

@@ -9260,8 +9260,8 @@ spec:
         - --enable-leader-election
         command:
         - /contour-operator
-        image: ghcr.io/projectcontour/contour-operator:main
-        imagePullPolicy: Always
+        image: ghcr.io/projectcontour/contour-operator:v1.20.0-beta.1
+        imagePullPolicy: IfNotPresent
         name: contour-operator
         resources:
           requests:

internal/config/config.go

@@ -14,7 +14,7 @@
 package config
 
 const (
-	DefaultContourImage           = "ghcr.io/projectcontour/contour:main"
+	DefaultContourImage           = "ghcr.io/projectcontour/contour:v1.20.0-beta.1"
 	DefaultEnvoyImage             = "docker.io/envoyproxy/envoy:v1.20.1"
 	DefaultMetricsAddr            = ":8080"
 	DefaultEnableLeaderElection   = false