releasing package dulwich version 0.19.10-1

debian/changelog

@@ -1,4 +1,4 @@
-dulwich (0.19.10-1) UNRELEASED; urgency=medium
+dulwich (0.19.10-1) unstable; urgency=medium
 
   * Suggest python{,3}-gpg, for tag signing support.
   * Add CI/CD configuration for Salsa.