chore: clean up test changelog file after merge

Author: sidmohan0

.github/workflows/beta-release.yml

@@ -116,7 +116,6 @@ jobs:
 
           echo "beta_version=$BETA_VERSION" >> $GITHUB_OUTPUT
           sed -i "s/__version__ = \".*\"/__version__ = \"$BETA_VERSION\"/" datafog/__about__.py
-          sed -i "s/version=\".*\"/version=\"$BETA_VERSION\"/" setup.py
 
       - name: Generate changelog
         run: |
@@ -153,7 +152,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GH_PAT }}
         run: |
           BETA_VERSION="${{ steps.version.outputs.beta_version }}"
-          git add datafog/__about__.py setup.py
+          git add datafog/__about__.py
           git commit -m "chore: bump version to $BETA_VERSION for beta release"
           git tag -a "v$BETA_VERSION" -m "Beta release $BETA_VERSION"
           git push origin "v$BETA_VERSION"

BETA_CHANGELOG.md

@@ -4,8 +4,9 @@
 with open("README.md", "r") as f:
     long_description = f.read()
 
-# Use a single source of truth for the version
-version = "4.2.0"
+# Use a single source of truth for the version from __about__.py
+exec(open("datafog/__about__.py").read())
+version = __version__  # noqa: F821
 
 project_urls = {
     "Homepage": "https://datafog.ai",