Update version of selenium server used for testing (#24)

.github/workflows/main.yml

@@ -54,7 +54,7 @@ jobs:
 
       - name: Install selenium server
         run: |
-          wget https://selenium-release.storage.googleapis.com/3.141/selenium-server-standalone-3.141.59.jar -O selenium-server.jar
+          wget https://github.com/SeleniumHQ/selenium/releases/download/selenium-4.3.0/selenium-server-4.3.0.jar -O selenium-server.jar
 
       # Lint before running unit tests
       - name: Run lint
@@ -64,8 +64,11 @@ jobs:
       - name: Run tests
         run: |
           echo "Start Selenium Server"
-          xvfb-run java -jar selenium-server.jar > /dev/null 2>&1 & sleep 6 & tox -e ${{matrix.PY_VER}}-standard
-          xvfb-run java -jar selenium-server.jar > /dev/null 2>&1 & sleep 6 & tox -e ${{matrix.PY_VER}}-xdist
+          xvfb-run java -jar selenium-server.jar standalone > selenium-server.log 2>&1 &
+          timeout 60 bash -c 'while ! wget -O /dev/null -T 1 http://localhost:4444/readyz; do echo waiting for Selenium Server; sleep 1; done' || (cat selenium-server.log && exit 2)
+          echo "Selenium server is ready, running tests"
+          tox -e ${{matrix.PY_VER}}-standard
+          tox -e ${{matrix.PY_VER}}-xdist
 
       - name: Archive artifacts
         uses: actions/upload-artifact@v3
@@ -75,7 +78,8 @@ jobs:
           path: logs/**/*
 
       - name: "Upload coverage to Codecov"
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v4
         with:
           fail_ci_if_error: true
           verbose: true
+          token: ${{ secrets.CODECOV_TOKEN }}