Fix kxstudio-lv2-extensions version

Signed-off-by: falkTX <falktx@falktx.com>

sources/libs/kxstudio-lv2-extensions/debian/changelog

@@ -1,4 +1,4 @@
-kxstudio-lv2-extensions (6:20220219-1kxstudio1) focal; urgency=medium
+kxstudio-lv2-extensions (6:2022-02-19-1kxstudio1) focal; urgency=medium
 
   * Initial package