ci: upload binary after build

.gitea/workflows/go.yaml

@@ -9,7 +9,8 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - name: Checkout code
+      uses: actions/checkout@v4
 
     - name: Set up Go
       uses: actions/setup-go@v4
@@ -21,3 +22,9 @@ jobs:
 
     - name: Test
       run: go test -v ./...
+
+    - name: Upload binary as artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: licensmith
+        path: licensmith