Revert ubuntu upgrade

Mark-Simulacrum · Mark-Simulacrum · commit a0acbf59502f · 2022-06-19T09:54:04.000-04:00
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,5 @@
-FROM ubuntu:jammy
+FROM ubuntu:focal
+# We need an older Ubuntu as github3 depends on < Python 3.10 to avoid errors
 
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
     python3-pip \
