Increase the size of the url column

[weotch]

Description

This increases the size of the url column so complex twig code can be stored in like:

{% if event.sender.site.handle == "prod" %}
    https://api.netlify.com/build_hooks/xxxxxx
{% elseif event.sender.site.handle == "en_CA" %}
    https://api.netlify.com/build_hooks/yyyyyy
{% elseif event.sender.site.handle == "fr_CA" %}
    https://api.netlify.com/build_hooks/zzzzzzz
{% endif %}

Related issues

• https://github.com/craftcms/webhooks/discussions/59