Change logs for snowball source package in Experimental

snowball (2.2.0-3) experimental; urgency=medium

  [ Helmut Grohne ]
  * Fix FTCBFS: Build snowball compiler for the build architecture.
    (Closes: #1034291)

  [ Stefano Rivera ]
  * Patch: Correctly clean stemtest.
  * Bump Standards-Version to 4.6.2, no changes needed.
  * Bump copyright years.

 -- Stefano Rivera <email address hidden>  Wed, 12 Apr 2023 10:58:39 -0400