Fix building dstack package

Author: jvstme

.github/workflows/release.yml

@@ -230,10 +230,12 @@ jobs:
       - name: Upload pip package
         run: |
           VERSION=${GITHUB_REF#refs/tags/}
-          BASE_IMAGE=$(cat src/dstack/version.py | grep base_image)
+          BASE_IMAGE=$(cat src/dstack/version.py | grep "base_image = ")
+          BASE_IMAGE_UBUNTU_VERSION=$(cat src/dstack/version.py | grep "base_image_ubuntu_version = ")
           echo "__version__ = \"$VERSION\"" > src/dstack/version.py
           echo "__is_release__ = True" >> src/dstack/version.py
           echo $BASE_IMAGE >> src/dstack/version.py
+          echo $BASE_IMAGE_UBUNTU_VERSION >> src/dstack/version.py
           cp README.md src
           uv build
           uv publish --username ${{ secrets.PYPI_USERNAME }} --password ${{ secrets.PYPI_PASSWORD }}   

src/dstack/version.py

@@ -1,3 +1,8 @@
+# WARNING:
+# This file is overwritten when building the dstack package in CI.
+# If you are adding, removing, or renaming variables,
+# remember to update and test the release.yml workflow.
+
 __version__ = "0.0.0"
 __is_release__ = False
 base_image = "0.10"