github: allow manually running deployments

.github/workflows/deploy-to-cloudflare.yml

@@ -1,13 +1,19 @@
 name: Deploy to Cloudflare Workers Sites
 
 on:
+  workflow_dispatch:
+    inputs:
+      env:
+        description: 'Environment to publish into'
+        required: true
+        default: 'staging'
   push:
     branches:
       - main
 
 jobs:
   deploy-main:
-    if: "contains(github.event.head_commit.message, '[deploy]')"
+    if: "contains(github.event.head_commit.message, '[deploy]') || ${{ github.event.inputs.env == 'prod' }}"
     runs-on: ubuntu-latest
 
     steps:
@@ -37,7 +43,7 @@ jobs:
           CF_ACCOUNT_ID: ${{ secrets.CF_ACCOUNT_ID }}
 
   deploy-staging:
-    if: "contains(github.event.head_commit.message, '[staging]')"
+    if: "contains(github.event.head_commit.message, '[staging]') || ${{ github.event.inputs.env == 'staging' }}"
     runs-on: ubuntu-latest
 
     steps: