Update dependency Flask to v3 [SECURITY]

renovate[bot] · web-flow · commit 2933c8f7de90 · 2026-02-21T03:33:44.000Z
diff --git a/requirements.txt b/requirements.txt
@@ -1,5 +1,5 @@
 click==6.7
-Flask==1.0.2
+Flask==3.1.3
 itsdangerous==0.24
 Jinja2==2.10.1.
 MarkupSafe==1.0
