Add optional force_fetch field to all dependency types

In `kapitan/targets.py` we access the `force_fetch` field regardless of
dependency type if force fetching wasn't requested globally.

kapitan/inventory/model/dependencies.py

@@ -17,14 +17,14 @@ class KapitanDependencyBaseConfig(BaseModel):
     type: KapitanDependencyTypes
     source: str
     output_path: str
+    force_fetch: Optional[bool] = False
 
 
 class KapitanDependencyHelmConfig(KapitanDependencyBaseConfig):
     type: Literal[KapitanDependencyTypes.HELM] = KapitanDependencyTypes.HELM
     chart_name: str
     version: Optional[str] = None
     helm_path: Optional[str] = None
-    force_fetch: Optional[bool] = False
 
 
 class KapitanDependencyGitConfig(KapitanDependencyBaseConfig):