Use newer debian and python (#93)

mscherer · web-flow · commit dc88824bd71d · 2023-07-19T16:06:20.000-07:00
Fix #77 I checked manually, git is installed, and flask is installed during the build.
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.7-stretch
+FROM python:3.11-bookworm
 
 WORKDIR /app
 
