Update dependency Flask to v2.3.2

Author: mend-for-github-com[bot]

requirements.txt

@@ -4,7 +4,7 @@ charset-normalizer==3.0.1
 click==8.1.3
 cryptography==39.0.0
 Deprecated==1.2.13
-Flask==2.2.2
+Flask==2.3.2
 idna==3.4
 importlib-metadata==6.0.0
 itsdangerous==2.1.2