CI: Test both Dask's multithreaded and local cluster in CI

CHANGES.md

@@ -6,6 +6,7 @@
 - OPTIM: Don't download files stored on cloud when applying `ci.assert_files_equal` on them
 - OPTIM: Offer the ability to give the archived file list directly to `path.get_archived_file_list` and `files.read_archived_file`, as this operation is expensive when done with large archives stored on the cloud (and thus better done only once).
   Propagated into `path.get_archived_path`, `path.get_archived_rio_path`, `vectors.read`, `xml.read_archive`, files.read_archived_xml` and `files.read_archived_html`
+- CI: Test both Dask's multithreaded and local cluster in CI
 - DEPR: Deprecate `xml_regex` and `file_regex` arguments from above-mentioned functions in favor of an harmonized `regex` argument.
 - DEPS: Reduce `dask`-related dependencies to the libraries related to this project (abandon `dask[complete]` as we don't need most of the embedded libraries).
 

CI/SCRIPTS/script_utils.py

@@ -73,7 +73,11 @@ def dask_env_wrapper(*_args, **_kwargs):
         """S3 environment wrapper"""
         try:
             with dask.get_or_create_dask_client():
-                print("Using DASK")
+                print("Using DASK multithreaded.")
+                function(*_args, **_kwargs)
+
+            with dask.get_or_create_dask_client():
+                print("Using DASK with local cluster")
                 function(*_args, **_kwargs)
         except ImportError:
             pass