0.3.4

Changes in 0.3.4

• Improved support for parallel multi-source datastore operations. Sentinel-2 and
  Sentinel-3 requests now use a randomly generated UUID for temporary file storage,
  preventing conflicts between concurrent requests.
• Added a retry mechanism for the data stores stac-cdse-ardc and stac-pc-ardc
  to handle temporary STAC API and data access errors.