update flask in auth (GoogleCloudPlatform#3392)

leahecole · gcf-merge-on-green[bot] · web-flow · commit 352f2a35bade · 2020-04-14T13:46:40.000-07:00
Co-authored-by: gcf-merge-on-green[bot] &lt;60162190+gcf-merge-on-green[bot]@users.noreply.github.com&gt;
diff --git a/auth/end-user/web/requirements.txt b/auth/end-user/web/requirements.txt
@@ -2,5 +2,5 @@ google-auth==1.11.2
 google-auth-oauthlib==0.4.1
 google-auth-httplib2==0.0.3
 google-api-python-client==1.7.11
-flask==1.1.1
+flask==1.1.2
 requests==2.23.0
