Update go.yml

Adapted the YAML file to actually save the resulting project artefacts....

Author: blodesbaum

.github/workflows/go.yml

@@ -23,3 +23,10 @@ jobs:
 
     - name: Test
       run: go test -v ./...
+
+    - name: Upload artifacts
+      uses: actions/upload-artifact@v2
+      with:
+        name: build-artifacts
+        path: |
+          **/*.exe