Use Ubuntu 22.04.2 LTS (Jammy Jellyfish) since it is a long-term supp…

…orted release (#8071)

* Use Ubuntu 22.04.2 LTS (Jammy Jellyfish) since it is a long-term supported release

* Changelog entry

.changes/unreleased/Fixes-20230711-145311.yaml

@@ -0,0 +1,6 @@
+kind: Fixes
+body: Fix Dockerfile.test
+time: 2023-07-11T14:53:11.454863-06:00
+custom:
+  Author: dbeatty10
+  Issue: "7352"

Dockerfile.test

@@ -3,13 +3,13 @@
 #  See `/docker` for a generic and production-ready docker file
 ##
 
-FROM ubuntu:23.10
+FROM ubuntu:22.04
 
 ENV DEBIAN_FRONTEND noninteractive
 
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \
-    software-properties-common \
+    software-properties-common gpg-agent \
     && add-apt-repository ppa:git-core/ppa -y \
     && apt-get dist-upgrade -y \
     && apt-get install -y --no-install-recommends \
@@ -30,8 +30,8 @@ RUN apt-get update \
     unixodbc-dev \
     && add-apt-repository ppa:deadsnakes/ppa \
     && apt-get install -y \
-    python \
-    python-dev \
+    python-is-python3 \
+    python-dev-is-python3 \
     python3-pip \
     python3.8 \
     python3.8-dev \