fix(webhook): use v2 template funcs with webhook provider

Signed-off-by: Moritz Johner <beller.moritz@googlemail.com>

pkg/provider/webhook/webhook.go

@@ -36,7 +36,7 @@ import (
 	esmeta "github.com/external-secrets/external-secrets/apis/meta/v1"
 	"github.com/external-secrets/external-secrets/pkg/provider"
 	"github.com/external-secrets/external-secrets/pkg/provider/schema"
-	"github.com/external-secrets/external-secrets/pkg/template/v1"
+	"github.com/external-secrets/external-secrets/pkg/template/v2"
 )
 
 // Provider satisfies the provider interface.