Bump version from 0.9.8 to 0.9.9

WhiteSymmetry · web-flow · commit 74363d01beb6 · 2026-05-15T00:18:42.000+03:00
diff --git a/CITATION.cff b/CITATION.cff
@@ -39,5 +39,5 @@ keywords:
   - numbers
 license: AGPL-3.0-or-later
 commit: 'Revision: 2'
-version: 0.9.8
+version: 0.9.9
 date-released: '2025-05-10'
