Merge pull request #311 from uptrace/dependabot/pip/example/flask/flask-3.1.3

chore(deps): bump flask from 2.3.2 to 3.1.3 in /example/flask

Author: vmihailenco

example/flask/requirements.txt

@@ -1,5 +1,5 @@
 uptrace==1.41.0
-flask==2.3.2
+flask==3.1.3
 flask_sqlalchemy==2.5.1
 itsdangerous==2.1.2
 opentelemetry-instrumentation-flask==0.62b0