chore(deps): update dependency java to v21

renovate[bot] · web-flow · commit de6a5a72b821 · 2025-07-17T11:03:17.000Z
diff --git a/.tool-versions b/.tool-versions
@@ -1 +1 @@
-java adoptopenjdk-8.0.442+6
+java adoptopenjdk-21.0.8+9.0.LTS
