ci: try to work around changes in s3 plugin

.woodpecker/.pages.yml

@@ -5,13 +5,13 @@ steps:
     settings:
       bucket: pages
       region: nebula
-      path_style: true
+      path-style: true
       endpoint: https://s3.frohnmeyer-wds.de
-      access_key: pages
-      secret_key:
-        from_secret: pages_secret
+      access-key: pages
+      secret-key:
+        from-secret: pages_secret
       source: static/**/*
       target: /scripts
-      strip_prefix: static/
+      strip-prefix: static/
     when:
-      - branch: master
+      - branch: master