Upgrade github-actions (#45)

* upgrade to codecov-v3

* Upgrade setup-python and checkout to their v3

* setup-python@v4

.github/workflows/build.yml

@@ -10,9 +10,9 @@ jobs:
         os: [ubuntu-latest, macos-latest, windows-latest]
         python-version: ['3.7', '3.8', '3.9', '3.10']
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
@@ -24,17 +24,20 @@ jobs:
       run: |
         pytest --cov=./ --cov-report=xml
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v1
+      uses: codecov/codecov-action@v3
       with:
-        name: codecov-umbrella # optional
-        fail_ci_if_error: true # optional (default = false)
-        verbose: true # optional (default = false)
+        directory: ./coverage/reports/
+        env_vars: ${{ matrix.os }}, ${{ matrix.python-version }}
+        fail_ci_if_error: true
+        files: ./coverage.xml
+        name: codecov-umbrella
+        verbose: true
   codestyle_type_and_doc:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Python 3.8
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: 3.8
     - name: Install dependencies