feat(ci): add version bump logic to GitHub Actions workflow

.github/workflows/update-version.yaml

@@ -0,0 +1,74 @@
+name: Update Version on PR Merge
+
+on:
+  pull_request:
+    types:
+      - closed
+
+jobs:
+  update_version:
+    if: github.event.pull_request.merged == true
+    runs-on: ubuntu-latest
+
+    steps:
+      # Checkout the code
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      # Set up Python
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.8'
+
+      # Install poetry
+      - name: Install Poetry
+        run: |
+          pipx install poetry==1.8.4
+          echo "$HOME/.local/bin" >> $GITHUB_PATH
+
+      # Install project dependencies
+      - name: Install dependencies
+        run: poetry install
+
+      # Determine the version bump type
+      - name: Determine version bump type
+        id: version_type
+        run: |
+          JSON_LABELS='${{ toJson(github.event.pull_request.labels) }}'
+          if echo "$JSON_LABELS" | jq -e '.[] | select(.name == "major")' >/dev/null; then
+            echo "type=major" >> $GITHUB_ENV
+          elif echo "$JSON_LABELS" | jq -e '.[] | select(.name == "minor")' >/dev/null; then
+            echo "type=minor" >> $GITHUB_ENV
+          elif echo "$JSON_LABELS" | jq -e '.[] | select(.name == "patch")' >/dev/null; then
+            echo "type=patch" >> $GITHUB_ENV
+          else
+            echo "No version bump label found."
+            exit 1
+          fi
+
+      # Bump the version using poetry
+      - name: Bump version
+        run: |
+          poetry version ${{ env.type }}
+          NEW_VERSION=$(poetry version -s)
+          echo "new_version=${NEW_VERSION}" >> $GITHUB_ENV
+
+      # Commit the version change
+      - name: Commit version update
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add pyproject.toml
+          git commit -m "Bump version to ${{ env.new_version }}"
+
+      # Push the changes
+      - name: Push changes
+        run: |
+          git push origin HEAD
+
+      # Create a Git tag
+      - name: Create Git tag
+        run: |
+          git tag -a v${{ env.new_version }} -m "Version ${{ env.new_version }}"
+          git push origin v${{ env.new_version }}