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/static/i18n/de.yaml

@@ -81,6 +81,7 @@ Errors:
       NotChanged: Email wurde nicht geändert
       Empty: Email ist leer
       IDMissing: Email ID fehlt
+      InvalidURLTemplate: URL Template ist ungültig
     Phone:
       NotFound: Telefonnummer nicht gefunden
       Invalid: Telefonnummer ist ungültig