[libc++] Install Python packaging to resolve LLDB data formatter issues (llvm#95971)

ldionne · AlexisPerry · commit c1346968b623 · 2024-06-27T14:45:20.000-06:00
This should fix the failures that started happening after llvm#93712 landed.
diff --git a/libcxx/utils/ci/Dockerfile b/libcxx/utils/ci/Dockerfile
@@ -92,6 +92,7 @@ RUN sudo apt-get update \
         python3 \
         python3-dev \
         python3-distutils \
+        python3-packaging \
         python3-psutil \
         software-properties-common \
         swig4.0 \
