Move test CI from Travis to GitHub Actions

Also:
- Remove older Python versions from CI
- Switch to updated PSF httpbin

.github/workflows/ci.yaml

@@ -0,0 +1,34 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  unit-tests:
+    runs-on: ubuntu-latest
+    strategy:
+      max-parallel: 3
+      matrix:
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install brotlipy coverage codecov
+
+      - name: Install warcio
+        run: python setup.py install
+
+      - name: Run tests
+        run: python setup.py test
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v1

setup.py

@@ -47,9 +47,10 @@ def run_tests(self):
     tests_require=[
         'pytest',
         'pytest-cov',
-        'httpbin==0.5.0',
+        'httpbin>=0.10.2',
         'requests',
         'wsgiprox',
+        'jinja2',
     ],
     classifiers=[
         'Development Status :: 5 - Production/Stable',