[SP-1230]: Backport of PDI-11928 - Unable to import repository if the file path to the import file contains Japanese character (5.0)

There ia a fix.
Merge pull request #501 from pavel-sakun/SP-1230

[SP-1230]: Backport of PDI-11928 - Unable to import repository if the file path to the import file contains Japanese character (5.0)