Changes in version 0.4.5                        

  - Added a NEWS.md file to track changes to the package.
  - Updated the SAGA search path on Windows to look in the new
    "C:/Program Files/SAGA" default installation directory
  - Updated GitHub action workflows to replace deprecated
    actions/checkout@v2 with actions/checkout@v4 and actions/cache@v2
    with actions/cache@v4.