Add custom flowzone action to finalize staging releases

Change-type: patch

.github/actions/finalize/action.yml

@@ -0,0 +1,22 @@
+# https://docs.github.com/en/actions/creating-actions/creating-a-composite-action
+name: 'Finalize releases on staging'
+description: 'Custom publish step to finalize releases on balena staging'
+# these inputs are always provided by flowzone, so they must always be defined on the composite action
+inputs:
+  json:
+    description: 'JSON stringified object containing all the inputs from the calling workflow'
+    required: true
+  secrets:
+    description: 'JSON stringified object containing all the secrets from the calling workflow'
+    required: true
+
+runs:
+  using: 'composite'
+  steps:
+    - uses: balena-io/deploy-to-balena-action@v0.13.0
+      with:
+        balena_token: ${{ fromJSON(inputs.secrets).CUSTOM_JOB_SECRET_1 }}
+        fleet: ${{ env.matrix_value }}
+        environment: balena-staging.com
+        versionbot: false # ignore versionbot branch since the flowzone source is already versioned
+        source: .

.github/workflows/flowzone.yml

@@ -4,8 +4,8 @@ on:
   pull_request:
     types: [opened, synchronize, closed]
     branches:
-      - "main"
+      - 'main'
-      - "master"
+      - 'master'
 
 jobs:
   flowzone:
@@ -24,8 +24,12 @@ jobs:
         balena_os/armv7hf-supervisor,
         balena_os/i386-supervisor,
         balena_os/rpi-supervisor
-      custom_publish_matrix:
+      custom_publish_matrix: balena_os/aarch64-supervisor,
-        balena_os/aarch64-supervisor,
+        balena_os/amd64-supervisor,
+        balena_os/armv7hf-supervisor,
+        balena_os/i386-supervisor,
+        balena_os/rpi-supervisor
+      custom_finalize_matrix: balena_os/aarch64-supervisor,
         balena_os/amd64-supervisor,
         balena_os/armv7hf-supervisor,
         balena_os/i386-supervisor,