refactor: rename package errors to zerrors (#7039)

* chore: rename package errors to zerrors

* rename package errors to gerrors

* fix error related linting issues

* fix zitadel error assertion

* fix gosimple linting issues

* fix deprecated linting issues

* resolve gci linting issues

* fix import structure

---------

Co-authored-by: Elio Bischof <elio@zitadel.com>

internal/zerrors/zerror_test.go

@@ -0,0 +1,18 @@
+package zerrors_test
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/zitadel/zitadel/internal/zerrors"
+)
+
+func TestErrorMethod(t *testing.T) {
+	err := zerrors.ThrowError(nil, "id", "msg")
+	expected := "ID=id Message=msg"
+	assert.Equal(t, expected, err.Error())
+
+	err = zerrors.ThrowError(err, "subID", "subMsg")
+	subExptected := "ID=subID Message=subMsg Parent=(ID=id Message=msg)"
+	assert.Equal(t, subExptected, err.Error())
+}