refactor: enum casing (#19946)

server/src/middleware/asset-upload.interceptor.ts

@@ -15,7 +15,7 @@ export class AssetUploadInterceptor implements NestInterceptor {
     const req = context.switchToHttp().getRequest<AuthenticatedRequest>();
     const res = context.switchToHttp().getResponse<Response<AssetMediaResponseDto>>();
 
-    const checksum = fromMaybeArray(req.headers[ImmichHeader.CHECKSUM]);
+    const checksum = fromMaybeArray(req.headers[ImmichHeader.Checksum]);
     const response = await this.service.getUploadAssetIdByChecksum(req.user, checksum);
     if (response) {
       res.status(200);