para: Skip para test when not on CI

Fixes #6963

common/para/para_test.go

@@ -22,6 +22,8 @@ import (
 	"testing"
 	"time"
 
+	"github.com/gohugoio/hugo/htesting"
+
 	qt "github.com/frankban/quicktest"
 )
 
@@ -30,6 +32,10 @@ func TestPara(t *testing.T) {
 		t.Skipf("skip para test, CPU count is %d", runtime.NumCPU())
 	}
 
+	if !htesting.IsCI() {
+		t.Skip("skip para test when not running on CI")
+	}
+
 	c := qt.New(t)
 
 	c.Run("Order", func(c *qt.C) {