Add ci env to travis config (#12608) (#12610)

Co-authored-by: publish-docs.sh <maintainers@solana.com>
(cherry picked from commit a17907b9a2)

Co-authored-by: Dan Albert <dan@solana.com>

.travis.yml

@@ -124,6 +124,7 @@ jobs:
           - ~/.npm
 
       before_install:
+        - source ci/env.sh
         - .travis/channel_restriction.sh edge beta || travis_terminate 0
         - .travis/affects.sh docs/ .travis || travis_terminate 0
         - cd docs/