Resolve GITHUB_PATH zizmor warning

[ArBridgeman]

Summary

To resolve the zizmor warning on https://github.com/exasol/python-toolbox/blob/main/.github/actions/python-environment/action.yml#L52, we could add a new environment variable that contains the path to poetry and we then migrate all workflows over time to use this variable. However, the question is if this makes sense when we want to move uv or do we need something similar for uv as well.

[ckunki]

However, the question is if this makes sense when we want to move uv or do we need something similar for uv as well.

👍 🙂 I was thinking about a similar approach !