fix typo

Author: molpopgen

.github/workflows/python.yml

@@ -41,7 +41,7 @@ jobs:
       - name: setup Python and run tests
         run: |
           uv venv -p 3.12
-          source .venv/bin/actvate
+          source .venv/bin/activate
           uv pip install -r python/requirements_locked_3_13.txt
           python -m pytest python