Go back to installing latest stable chrome and chromedriver (March 2025 or later)

[ChloeSartorelli]

In #140 we started hardcoding the version of chrome and chromedriver to v126, because with v127 we were getting different results than we get with direct user interaction.

If php-webdriver/php-webdriver#1104 has been resolved, or if enough time has passed that it's worth trying again, revert #140

[ChloeSartorelli]

Still not fixed as of December 2024 with ChromeDriver 133. Updating the date in the issue to check again next year.
If it hasn't been updated by then, we might have to look at whether firefox has the same problem and whether it's feasible to swap.