adds basic py3.9 tests

.github/workflows/pythonapp.yml

@@ -159,7 +159,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.6, 3.7]
+        python-version: [3.6, 3.7, 3.8, 3.9]
     timeout-minutes: 40
     steps:
     - uses: actions/checkout@v2

.github/workflows/release.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8]
+        python-version: [3.6, 3.7, 3.8, 3.9]
     steps:
     - uses: actions/checkout@v2
       with:

.github/workflows/setupapp.yml

@@ -36,7 +36,7 @@ jobs:
         which python
         python -m pip install --upgrade pip wheel
         python -m pip uninstall -y torch torchvision
-        python -m pip install torch==1.7.1 torchvision==0.8.2
+        python -m pip install torch==1.8.1 torchvision==0.9.1
         python -m pip install -r requirements-dev.txt
     - name: Run unit tests report coverage
       run: |
@@ -66,7 +66,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8]
+        python-version: [3.6, 3.7, 3.8, 3.9]
     steps:
     - uses: actions/checkout@v2
       with:
@@ -90,7 +90,7 @@ jobs:
     - name: Install the dependencies
       run: |
         python -m pip install --upgrade pip wheel
-        python -m pip install torch==1.7.1 torchvision==0.8.2
+        python -m pip install torch==1.8.1 torchvision==0.9.1
         python -m pip install -r requirements-dev.txt
     - name: Run quick tests CPU ubuntu
       run: |