Promote 20-blue to prod [skip ci]

Author: Kargo

manifests-amer-east.yaml

@@ -126,13 +126,13 @@ spec:
         app: rollouts-app
     spec:
       containers:
-        - image: "ghcr.io/akuity/sedemo-monorepo-rollouts-app:19-green"
+        - image: "ghcr.io/akuity/sedemo-monorepo-rollouts-app:20-blue"
           name: rollouts-app
           ports:
             - containerPort: 8080
           env:
             - name: SEMVER
-              value: "19-green"
+              value: "20-blue"
             - name: STAGE
               value: prod-amer-east
             - name: NAMESPACE

manifests-amer-west.yaml

@@ -126,13 +126,13 @@ spec:
         app: rollouts-app
     spec:
       containers:
-        - image: "ghcr.io/akuity/sedemo-monorepo-rollouts-app:19-green"
+        - image: "ghcr.io/akuity/sedemo-monorepo-rollouts-app:20-blue"
           name: rollouts-app
           ports:
             - containerPort: 8080
           env:
             - name: SEMVER
-              value: "19-green"
+              value: "20-blue"
             - name: STAGE
               value: prod-amer-west
             - name: NAMESPACE

manifests-emea.yaml

@@ -126,13 +126,13 @@ spec:
         app: rollouts-app
     spec:
       containers:
-        - image: "ghcr.io/akuity/sedemo-monorepo-rollouts-app:19-green"
+        - image: "ghcr.io/akuity/sedemo-monorepo-rollouts-app:20-blue"
           name: rollouts-app
           ports:
             - containerPort: 8080
           env:
             - name: SEMVER
-              value: "19-green"
+              value: "20-blue"
             - name: STAGE
               value: prod-emea
             - name: NAMESPACE