Update mysql Docker tag to v9 (#7)

renovate[bot] · web-flow · commit 5722afd00e72 · 2025-06-19T09:47:33.000-07:00
Co-authored-by: renovate[bot] &lt;29139614+renovate[bot]@users.noreply.github.com&gt;
diff --git a/docker-compose.yml b/docker-compose.yml
@@ -1,6 +1,6 @@
 services:
   mysql:
-    image: mysql:8
+    image: mysql:9
     container_name: mysql_db
     restart: always
     environment:
