Revert dockerfile edit

Dockerfile

@@ -9,7 +9,7 @@ FROM --platform=$ARCH julia:$VERSION
 # Need to use ARG after FROM, otherwise it won't get passed through.
 ARG PYVERSION=3.9.10
 
-RUN apt-get upgrade -y && apt-get install -y \
+RUN apt-get update && apt-get upgrade -y && apt-get install -y \
     make build-essential libssl-dev zlib1g-dev \
     libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm \
     libncursesw5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev \