Add ci environment to prepare workflow

We need an environment to pick up the linux arm runner config.

.github/workflows/ci.yml

@@ -39,6 +39,7 @@ jobs:
   prepare-workflow:
     name: Prepare Workflow Run
     runs-on: ubuntu-22.04
+    environment: ci
     outputs:
       jobs: ${{ steps.define-jobs.outputs.jobs }}
       changed-files: ${{ steps.process-changed-files.outputs.changed-files }}

.github/workflows/nightly.yml

@@ -85,6 +85,7 @@ jobs:
   prepare-workflow:
     name: Prepare Workflow Run
     runs-on: ubuntu-22.04
+    environment: ci
     if: ${{ fromJSON(needs.workflow-requirements.outputs.requirements-met) }}
     needs:
       - workflow-requirements

.github/workflows/scheduled.yml

@@ -75,6 +75,7 @@ jobs:
   prepare-workflow:
     name: Prepare Workflow Run
     runs-on: ubuntu-22.04
+    environment: ci
     if: ${{ fromJSON(needs.workflow-requirements.outputs.requirements-met) }}
     needs:
       - workflow-requirements

.github/workflows/staging.yml

@@ -67,6 +67,7 @@ jobs:
   prepare-workflow:
     name: Prepare Workflow Run
     runs-on: ubuntu-22.04
+    environment: ci
     needs:
       - check-requirements
     outputs:

.github/workflows/templates/layout.yml.jinja

@@ -78,6 +78,7 @@ jobs:
   prepare-workflow:
     name: Prepare Workflow Run
     runs-on: ubuntu-22.04
+    environment: ci
     <%- if prepare_workflow_if_check %>
     if: <{ prepare_workflow_if_check }>
     <%- endif %>