Extend transformers to <4.9.0 (#279)

* Extend transformers to <4.9.0

* Update to ubuntu-18.04 in CI

Author: adrianeboyd

azure-pipelines.yml

@@ -17,13 +17,13 @@ jobs:
   strategy:
     matrix:
       Python36Linux:
-        imageName: 'ubuntu-16.04'
+        imageName: 'ubuntu-18.04'
         python.version: '3.6'
       Python37Mac:
         imageName: 'macos-10.14'
         python.version: '3.7'
       Python38Linux:
-        imageName: 'ubuntu-16.04'
+        imageName: 'ubuntu-18.04'
         python.version: '3.8'
       Python38Mac:
         imageName: 'macos-10.14'

requirements.txt

@@ -1,5 +1,5 @@
 spacy>=3.0.0,<4.0.0
-transformers>=3.4.0,<4.7.0
+transformers>=3.4.0,<4.9.0
 torch>=1.5.0
 srsly>=2.4.0,<3.0.0
 dataclasses>=0.6,<1.0; python_version < "3.7"

setup.cfg

@@ -28,7 +28,7 @@ include_package_data = true
 python_requires = >=3.6
 install_requires =
     spacy>=3.0.0,<4.0.0
-    transformers>=3.4.0,<4.7.0
+    transformers>=3.4.0,<4.9.0
     torch>=1.5.0
     srsly>=2.4.0,<3.0.0
     dataclasses>=0.6,<1.0; python_version < "3.7"