feat: asset storage (#1696)

* feat: remove assets

* feat: minio implementation

* fix: remove assets from tests

* feat: minio implementation

* feat: Env vars

* fix: sprintf

* fix: sprintf

* Update internal/eventstore/repository/repository.go

Co-authored-by: Livio Amstutz <livio.a@gmail.com>

* fix: error handling

Co-authored-by: Livio Amstutz <livio.a@gmail.com>

internal/command/user_machine_test.go

@@ -128,7 +128,6 @@ func TestCommandSide_AddMachine(t *testing.T) {
 								),
 							),
 						},
-						nil,
 						uniqueConstraintsFromEventConstraint(user.NewAddUsernameUniqueConstraint("username", "org1", true)),
 					),
 				),
@@ -292,7 +291,6 @@ func TestCommandSide_ChangeMachine(t *testing.T) {
 								newMachineChangedEvent(context.Background(), "user1", "org1", "name1", "description1"),
 							),
 						},
-						nil,
 					),
 				),
 			},