.travis: update pip3 on linux before installing twine

Trying to fix issue while installing cryptography (dependency of twine) https://travis-ci.org/github/googlefonts/ots-python/jobs/771724661#L662 #3 (comment)
googlefonts · May 20, 2021 · 3f6118b · 3f6118b
1 parent 84016be
commit 3f6118b
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -44,6 +44,7 @@ after_success:
   - |
     if [ "$TRAVIS_OS_NAME" == "linux" ]; then
         pyenv global 3.6.7
+        python3 -m pip install --upgrade pip
     fi
     if [ -n "$TRAVIS_TAG" ] && [ "$TRAVIS_REPO_SLUG" == "googlefonts/ots-python" ]; then
         pip3 install --upgrade twine