fix(cd): remove uv version step incompatible with dynamic versioning

The project uses dynamic versioning via pydgraph/meta.py, which makes
`uv version` fail with "cannot get or set dynamic project versions".
The version is already set correctly from meta.py during build.

Author: mlwelles

.github/workflows/cd-pydgraph.yml

@@ -32,8 +32,6 @@ jobs:
         run: SKIP=no-commit-to-branch make check
       - name: Run tests
         run: make test
-      - name: Set version
-        run: uv version ${{ github.event.inputs.releasetag }}
       - name: Build release
         run: make clean build
       - name: Publish release