Testing the validation on the server side doesn't work with chromedriver
because HTML valdations result in the browser not even submitting the
form, so we're adding a `:no_js` tag to indicate we deliberately choose
to use the Rack driver.
The following test checking client side validation passes on my machine
but fails on Github Actions:
```
scenario "Validates price formats on the client side", :js do
investment.update!(visible_to_valuators: true)
visit edit_valuation_budget_budget_investment_path(budget, investment)
fill_in "Price (€)", with: "12345,98"
click_button "Save changes"
validation_message = find_field("Price (€)").native.attribute("validationMessage")
expect(validation_message).to be_present
end
```