chore(ci): use python as webdriver for wasm test and benchmarks

Swtich from Jest and Puppeteer to Python with Selenium. It relies
on browser and webdriver binaries from browser fabricators.
For now the Python script only supports Chrome browser.

.gitignore

@@ -26,6 +26,8 @@ backends/tfhe-cuda-backend/cuda/cmake-build-debug/
 
 # WASM tests
 tfhe/web_wasm_parallel_tests/server.PID
+venv/
+web_test_runners/
 
 # Dir used for backward compatibility test data
 tfhe/tfhe-backward-compat-data/