Update dependency flask to v3

renovate[bot] · web-flow · commit e2f9e17630e3 · 2024-06-21T17:25:01.000Z
diff --git a/requirements.txt b/requirements.txt
@@ -1,6 +1,6 @@
 discord.py==2.3.2
 environs==9.5.0
-flask==2.3.3
+flask==3.0.3
 marshmallow==3.21.3
 python-dateutil==2.8.2
 requests==2.31.0
