Merge pull request #171 from vpython/dependabot/pip/flask-2.3.2

Bump flask from 1.1.2 to 2.3.2

Author: BruceSherwood

requirements.txt

@@ -6,7 +6,7 @@ cffi==1.14.1
 chardet==3.0.4
 click==7.1.2
 cryptography==39.0.1
-Flask==1.1.2
+Flask==2.3.2
 google-api-core==1.22.0
 google-api-python-client==1.10.0
 google-auth==1.20.0