try let upload of docs and python wheels outside docker and cache semantics

.circleci/config.yml

@@ -143,15 +143,12 @@ jobs:
             - wheelhouse
 
   upload_docs_wheels:
-    docker:
-      - image: deltachat/coredeps
-    working_directory: /mnt/crate
+    machine: true
     steps:
-      - *restore-workspace
-      - *restore-cache
+      - checkout
       - attach_workspace:
           at: workspace
-      # - run: pyenv global 3.5.2
+      - run: pyenv global 3.5.2
       - run: ls -laR workspace
       - run: ci_scripts/ci_upload.sh workspace/py-docs workspace/wheelhouse