Fetch semver without poetry

.github/workflows/build-deploy.yaml

@@ -37,7 +37,7 @@ jobs:
  - name: Fetch project version (Backend)
  if: ${{ inputs.project == 'backend' }}
  run: >-
- echo "THALLIUM_SEMVER=$(poetry version -s)" >> $GITHUB_ENV
+ echo "THALLIUM_SEMVER=$(cat pyproject.toml | grep '^version =') | grep -Po '(\d+\.){2}\d+')" >> $GITHUB_ENV
 
  # Build and push the container to the GitHub Container
  # Repository. The container will be tagged as "latest"