Fix initialism errors (PR-3) (#17062)

* Fix initialism errors

* Revert some changes and regenerate file

* Update client4.go

* Update group_test.go

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

api4/group_test.go

@@ -963,7 +963,7 @@ func TestGetGroups(t *testing.T) {
 	assert.Equal(t, groups[0].Id, th.Group.Id)
 }
 
-func TestGetGroupsByUserId(t *testing.T) {
+func TestGetGroupsByUserID(t *testing.T) {
 	th := Setup(t).InitBasic()
 	defer th.TearDown()