Merge branch 'chore/bump-flask-deps' into 'main'

chore(deps): bump Flask from 3.0.0 to 3.1.3

Closes #163 and #162

See merge request postgres-ai/postgresai!237

Author: NikolayS

monitoring_flask_backend/requirements.txt

@@ -1,4 +1,4 @@
-Flask==3.0.0
+Flask==3.1.3
 prometheus-api-client==0.5.4
 python-dateutil==2.9.0.post0
 gunicorn==25.1.0