fix: Resolve missing default values for Optional types in Vault config

src/bilder/components/hashicorp/vault/models.py

@@ -1,10 +1,9 @@
 import abc
 from collections.abc import Iterable
 from pathlib import Path
-from typing import Optional, Union
+from typing import Annotated, Optional, Union
 
-from pydantic import SerializeAsAny, field_validator
-from pydantic.types import conint
+from pydantic import Field, SerializeAsAny, field_validator
 from pydantic_settings import SettingsConfigDict
 
 from bilder.components.hashicorp.models import (
@@ -126,7 +125,7 @@ class VaultRetryJoin(FlexibleBaseModel):
 
 class IntegratedRaftStorageBackend(FlexibleBaseModel):
     path: Path = Path("/var/lib/vault/raft/")
-    performance_multiplier: Optional[conint(ge=0, le=10)]  # type: ignore
+    performance_multiplier: Optional[Annotated[int, Field(ge=0, le=10)]] = None
     # The node_id is an optional parameter that will receive an autogenerated UUID if
     # not set.
     # https://github.com/hashicorp/vault/blob/master/physical/raft/raft.go#L289-L329