Fix failure on forked repository (#414)

* try

* try

* try

* fix

* fix

.github/workflows/deploy-test-pypi.yml

@@ -29,6 +29,7 @@ jobs:
         pip install twine wheel
     - name: Deploy
       run: |
+        [ ! -z "$GITHUB_HEAD_REF" ] && exit
         rm -rf dist/*
         git tag $(date +'v%Y.%m.%d.%H.%M.%S')
         python setup.py bdist bdist_wheel

.github/workflows/docs.yml

@@ -45,6 +45,7 @@ jobs:
         git config --global user.name "zasdfgbnm-bot"
     - name: Deploy
       run: |
+        [ ! -z "$GITHUB_HEAD_REF" ] && exit
         git clone git@github.com:aiqm/torchani-test-docs.git deploy_dir -b gh-pages
         rm -rf deploy_dir/*
         touch deploy_dir/.nojekyll