fix searchfile bug and filter tests for old clients

Author: bisgaard-itis

clients/python/src/osparc/_api_files_api.py

@@ -251,11 +251,15 @@ def _search_files(
         sha256_checksum: Optional[str] = None,
         timeout_seconds: int = DEFAULT_TIMEOUT_SECONDS,
     ) -> PaginationGenerator:
+        kwargs = {
+            "file_id": file_id,
+            "sha256_checksum": sha256_checksum,
+            "timeout_seconds": timeout_seconds,
+        }
+
         def _pagination_method():
             return super(FilesApi, self).search_files_page(
-                file_id=file_id,
-                sha256_checksum=sha256_checksum,
-                _request_timeout=timeout_seconds,
+                {k: v for k, v in kwargs.items() if v is not None}
             )
 
         return PaginationGenerator(

clients/python/test/e2e/test_files_api.py

@@ -99,7 +99,7 @@ def max_diff(data: List[int]) -> int:
         files_api.delete_file(uploaded_file1.id)
 
 
-@skip_if_osparc_version(at_least=Version("0.8.0"))
+@skip_if_osparc_version(at_least=Version("0.8.3.post0.dev20"))
 @pytest.mark.parametrize("use_checksum", [True, False])
 @pytest.mark.parametrize("use_id", [True, False])
 def test_search_files(