Use new codecov method to upload coverage (#1069)

* Use new codecov method to upload coverage

* Remove codecov from requirements

* Fix runner for different OSs

.github/workflows/tests.yml

@@ -53,13 +53,17 @@ jobs:
           fetch-depth: 0
 
       - name: Install tox
-        run: pip install tox codecov
+        run: pip install tox
 
       - name: Run unit tests
         run: tox -e py
 
-      - name: Upload coverage
-        run: codecov
+      - name: Upload coverage reports to Codecov
+        run: |
+          OS_LOWERCASE=$(echo $RUNNER_OS | tr '[:upper:]' '[:lower:]')
+          curl -Os https://uploader.codecov.io/latest/${OS_LOWERCASE}/codecov
+          chmod +x codecov
+          ./codecov
 
   cli:
     name: CLI smoke tests

setup.cfg

@@ -76,7 +76,6 @@ dev =
     %(plot)s
     black
     bump2version
-    codecov
     coverage
     flake8
     mypy

tox.ini

@@ -8,8 +8,7 @@ commands =
     pytest \
         --durations=0 \
         --capture=no \
-        --cov=torchio \
-        --cov-report=xml
+        --cov=torchio
 
 [testenv:mypy]
 deps = mypy