update runner to preserve artifacts

Author: xray

.github/workflows/ci.yml

@@ -38,3 +38,17 @@ jobs:
 
       - name: Build
         run: go build -o emd ./cmd/emd
+
+      - name: Upload build artifact (non-Windows)
+        if: runner.os != 'Windows'
+        uses: actions/upload-artifact@v4
+        with:
+          name: emd-${{ runner.os }}
+          path: emd
+
+      - name: Upload build artifact (Windows)
+        if: runner.os == 'Windows'
+        uses: actions/upload-artifact@v4
+        with:
+          name: emd-${{ runner.os }}
+          path: emd.exe