add software-properties-common again

sbSteveK · sbSteveK · commit 169834550be3 · 2025-09-15T10:47:22.000-07:00
diff --git a/.github/docker-images/ubuntu-18-x64/Dockerfile b/.github/docker-images/ubuntu-18-x64/Dockerfile
@@ -30,6 +30,7 @@ RUN apt-get update \
     libxml2-dev \
     libxmlsec1-dev \
     libffi-dev \
+    software-properties-common \
     liblzma-dev
 
 # Build Python 3.10 from source
