feat(licenses): sync between portainer and license-server (#41)

* feat(license): add sync service

* feat(licenses): check license server

* chore(deps): update liblicense

* feat(license): revoke license if invalid

* feat(license): log revokation

* - removed retry logics
- removed license sync logging
* revert liblicense version

* - remove not used field

Co-authored-by: yi-portainer <yi.chen@portainer.io>

api/cmd/portainer/main.go

@@ -463,6 +463,11 @@ func main() {
 		log.Fatal(err)
 	}
 
+	err = licenseService.Start()
+	if err != nil {
+		log.Fatalf("failed starting license service: %w", err)
+	}
+
 	var server portainer.Server = &http.Server{
 		ReverseTunnelService:    reverseTunnelService,
 		Status:                  applicationStatus,