Compress linux artifacts to preserve executable status

.github/workflows/autobuild.yml

@@ -3,7 +3,7 @@ name: Automatic Build
 
 on:
   push:
-    branches: ['autobuild']
+    branches: ['dev', 'autobuild']
 
 jobs:
   build-windows:
@@ -116,11 +116,13 @@ jobs:
           cp -r ../../linux/build-x86_64/lib/ruby/3.1.0 .
           mv ./3.1.0 ./stdlib
           cp ../../mkxp.json .
+          cd ..
+          zip -r local.zip local
 
       - uses: actions/upload-artifact@v3
         with:
           name: mkxp-z.linux.${{github.ref_name}}-${{steps.short-sha.outputs.sha}}
-          path: build/local/
+          path: build/local.zip
 
   build-macos:
     name: macOS