Move jobparser from act repository to Gitea (#36699)

The jobparser sub package in act is only used by Gitea. Move it to Gitea
to make it more easier to maintain.

---------

Co-authored-by: Christopher Homberger <christopher.homberger@web.de>

models/actions/task_test.go

@@ -7,7 +7,8 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/nektos/act/pkg/jobparser"
+	"code.gitea.io/gitea/modules/actions/jobparser"
+
 	"github.com/stretchr/testify/assert"
 )