chore: fix generators in crypto package (#12008)

# Which Problems Are Solved

`@zitadel/api:generate-go` failed due to duplicate generated files.
https://github.com/zitadel/zitadel/pull/11820 removed the old generated
file and added a generate command to the `internal/crypto/crypto.go`
file. However, there was already a `internal/crypto/generate.go` with a
different output file name (the old file).

# How the Problems Are Solved

Removed the `internal/crypto/generate.go` file and moved the second
generate into `internal/crypto/code.go`.

# Additional Changes

Noticed that mockgen is an old version and updated it. Also then checked
all other tools and updated them.

# Additional Context

- relates to #11820
- noted internally

internal/crypto/code.go

@@ -23,6 +23,8 @@ type GeneratorConfig struct {
 	IncludeSymbols      bool
 }
 
+//go:generate mockgen -source code.go -destination ./code_mock.go -package crypto
+
 type Generator interface {
 	Length() uint
 	Expiry() time.Duration