Add native binaries step to the pipeline

Sync Makefile and .woodpecker.yaml from bevy-tools: native linux-x64
build + mingw win-x64 cross-compile, uploaded as release assets.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

.woodpecker.yaml

@@ -7,9 +7,16 @@ steps:
 
   - name: build
     image: git.teletypegames.org/internal/bevy-builder:latest
+    pull: true
     commands:
       - make ci-export
 
+  - name: binaries
+    image: git.teletypegames.org/internal/bevy-builder:latest
+    pull: true
+    commands:
+      - make ci-binaries
+
   - name: upload
     image: alpine
     environment: