chore(release): update citation file

jmaassen · github-actions[bot] · commit 60d7737c8720 · 2025-08-29T08:21:50.000Z
diff --git a/CITATION.cff b/CITATION.cff
@@ -79,5 +79,5 @@ keywords:
   - Software Impact
   - Software Reuse
 license: Apache-2.0
-version: v5.0.0
-date-released: '2025-08-19'
+version: v5.1.0
+date-released: '2025-08-29'
