Merge branch 'installer-prereqs' into feat/installer-bundle-lock

scripts/test-external-plugin.sh

@@ -90,7 +90,7 @@ else
   python3 -m venv "$WORKDIR/venv"
   PYTHON="$WORKDIR/venv/bin/python"
   "$PYTHON" -m pip install --upgrade pip >/dev/null
-  "$PYTHON" -m pip install -r "$FRAMEWORK/requirements.txt"
+  "$PYTHON" -m pip install -r "$FRAMEWORK/requirements-dev.txt"
 fi
 
 echo "==> Linking plugin '$PLUGIN_NAME' into framework plugins/"