fix(build): release-python: disable unused poetry caching

This workflow only _uploads_ existing artifacts, so keeping a poetry
cache around just, uh, breaks the workflow since there's no `Poetry.lock`
to cache.

.github/workflows/release-python.yaml

@@ -18,7 +18,6 @@ jobs:
       - uses: actions/setup-python@v4
         with:
           python-version: '3.10'
-          cache: 'poetry'
 
       - name: install twine
         run: |