Workaround for broken test

See golang/go#52338 and golang/go#52648

Author: earthboundkid

.github/workflows/go.yml

@@ -11,7 +11,7 @@ jobs:
     - name: Set up Go 1.x
       uses: actions/setup-go@v2
       with:
-        go-version: ^1.18
+        go-version: 1.18
       id: go
 
     - name: Check out code into the Go module directory