INPYTHON-592 Fix Release Version Bump Handling (#301)

Author: blink1073

.github/scripts/bump-version.sh

@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+set -eu
+
+CURRENT_VERSION=$(NO_EXT=1 python setup.py --version)
+sed -i '' "s/__version__ = \"${CURRENT_VERSION}\"/__version__ = \"$1\"/" "pymongoarrow/version.py"

.github/workflows/release-python.yml

@@ -120,6 +120,7 @@ jobs:
       - uses: mongodb-labs/drivers-github-tools/python-labs/post-publish@v2
         with:
           following_version: ${{ env.FOLLOWING_VERSION }}
+          version_bump_script: ./../../.github/scripts/bump-version.sh
           product_name: ${{ env.PRODUCT_NAME }}
           token: ${{ github.token }}
           dry_run: ${{ env.DRY_RUN }}