feat: user v2alpha email API (#5708)

* chore(proto): update versions

* change protoc plugin

* some cleanups

* define api for setting emails in new api

* implement user.SetEmail

* move SetEmail buisiness logic into command

* resuse newCryptoCode

* command: add ChangeEmail unit tests

Not complete, was not able to mock the generator.

* Revert "resuse newCryptoCode"

This reverts commit c89e90ae35.

* undo change to crypto code generators

* command: use a generator so we can test properly

* command: reorganise ChangeEmail

improve test coverage

* implement VerifyEmail

including unit tests

* add URL template tests

* proto: change context to object

* remove old auth option

* remove old auth option

* fix linting errors

run gci on modified files

* add permission checks and fix some errors

* comments

* comments

---------

Co-authored-by: Livio Spring <livio.a@gmail.com>
Co-authored-by: Tim Möhlmann <tim+github@zitadel.com>

internal/protoc/protoc-gen-authoption/main.go

@@ -1,15 +0,0 @@
-package main
-
-import (
-	base "github.com/zitadel/zitadel/internal/protoc/protoc-base"
-	"github.com/zitadel/zitadel/internal/protoc/protoc-gen-authoption/authoption"
-)
-
-const (
-	fileName = "%v.pb.authoptions.go"
-)
-
-func main() {
-	base.RegisterExtension(authoption.E_AuthOption)
-	base.RunWithBaseTemplate(fileName, base.LoadTemplate(templatesAuth_method_mappingGoTmplBytes()))
-}