Add 3.9 to the build a test matrix (#62)

* also updated the Cython version

Author: b0g3r

.github/workflows/release.yml

@@ -70,7 +70,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: [3.5, 3.6, 3.7, 3.8]
+        python-version: [3.5, 3.6, 3.7, 3.8, 3.9]
         os: [ubuntu-16.04, macos-latest, windows-latest]
         exclude:
           # Python 3.5 is unable to properly

.github/workflows/tests.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: [3.5, 3.6, 3.7, 3.8]
+        python-version: [3.5, 3.6, 3.7, 3.8, 3.9]
         os: [windows-latest, ubuntu-18.04, macos-latest]
         exclude:
           # Python 3.5 is unable to properly

setup.py

@@ -15,7 +15,7 @@
 
 ROOT = pathlib.Path(__file__).parent
 
-CYTHON_DEPENDENCY = 'Cython==0.29.14'
+CYTHON_DEPENDENCY = 'Cython==0.29.22'
 
 
 class httptools_build_ext(build_ext):