fix: ensure manually tagged faces have proper source type (#16364)

immich-app/immich#16062 added manual face tagging and deletion, but did
not add a new 'SourceType'. The create faces would default to
'machine-learning' which is incorrect, and has the annoying downside
that they will be wiped when the 'Refresh Faces' job is run.

Handling of non-machine-learning faces was previously added in
immich-app/immich#6455. This PR simply extends it to the new manually
tagged faces.

open-api/typescript-sdk/src/fetch-client.ts

@@ -529,6 +529,7 @@ export type AssetFaceCreateDto = {
     imageHeight: number;
     imageWidth: number;
     personId: string;
+    sourceType: SourceType;
     width: number;
     x: number;
     y: number;
@@ -3453,7 +3454,8 @@ export enum AlbumUserRole {
 }
 export enum SourceType {
     MachineLearning = "machine-learning",
-    Exif = "exif"
+    Exif = "exif",
+    Manual = "manual"
 }
 export enum AssetTypeEnum {
     Image = "IMAGE",