First matrix attempt

.woodpecker.yml

@@ -1,12 +1,19 @@
 when:
   - event: [push, pull_request, pull_request_closed, tag, release, manual]
+
+matrix:
+  PHP_VERSION:
+    - 8.0
+    - 8.1
+    - 8.2
+    - 8.3
 steps:
   - name: requirements
     image: composer
     commands:
     - composer install --no-dev
   - name: run
-    image: php:cli-bookworm
+    image: php:${PHP_VERSION}-cli
     commands:
       - ./backup show config.example.yml
   - name: dependencies