Merge pull request #66 from appwrite/fix-urllib3-openssl-error

Update CI to use newer Ubuntu

Author: christyjacob4

.travis.yml

@@ -1,5 +1,7 @@
 language: python
 
+dist: bionic
+
 python:
   - "3.8"
 
@@ -17,4 +19,4 @@ jobs:
         username: "__token__"
         password: $PYPI_TOKEN
         on:
-          tags: true
+          tags: true