Bump golangci version to v1.38.0 (#17154)

* Update golangci to v1.38.0

Co-authored-by: Claudio Costa <cstcld91@gmail.com>
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

app/post_test.go

@@ -260,8 +260,7 @@ func TestUpdatePostEditAt(t *testing.T) {
 	th := Setup(t).InitBasic()
 	defer th.TearDown()
 
-	post := &model.Post{}
-	post = th.BasicPost.Clone()
+	post := th.BasicPost.Clone()
 
 	post.IsPinned = true
 	saved, err := th.App.UpdatePost(post, true)
@@ -283,8 +282,7 @@ func TestUpdatePostTimeLimit(t *testing.T) {
 	th := Setup(t).InitBasic()
 	defer th.TearDown()
 
-	post := &model.Post{}
-	post = th.BasicPost.Clone()
+	post := th.BasicPost.Clone()
 
 	th.App.Srv().SetLicense(model.NewTestLicense())