chore: remove version update job from release workflow

.github/workflows/release.yml

@@ -9,42 +9,7 @@ env:
   BACKEND_IMAGE_NAME: ${{ github.repository }}-backend
 
 jobs:
-  update-version:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: write
-    outputs:
-      version: ${{ steps.get-version.outputs.version }}
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          ref: main
-          fetch-depth: 0
-
-      - name: Get version from tag
-        id: get-version
-        run: echo "version=${GITHUB_REF#refs/tags/v}" >> $GITHUB_OUTPUT
-
-      - name: Update pyproject.toml version
-        run: |
-          VERSION=${{ steps.get-version.outputs.version }}
-          sed -i "s/version = \".*\"/version = \"$VERSION\"/" backend/pyproject.toml
-          
-      - name: Commit and push version update
-        run: |
-          git config --global user.name "GitHub Actions"
-          git config --global user.email "[email protected]"
-          git add backend/pyproject.toml
-          git commit -m "chore: update version to ${{ steps.get-version.outputs.version }}"
-          git push origin main
-
-      - name: Update release tag
-        run: |
-          git tag -f ${{ github.event.release.tag_name }}
-          git push --force origin ${{ github.event.release.tag_name }}
-
   build-and-push-docker:
-    needs: update-version
     runs-on: ubuntu-latest
     permissions:
       contents: read
@@ -85,7 +50,7 @@ jobs:
           labels: ${{ steps.meta-backend.outputs.labels }}
 
   publish-to-pypi:
-    needs: [update-version, build-and-push-docker]
+    needs: [build-and-push-docker]
     runs-on: ubuntu-latest
     permissions:
       id-token: write