DOCSP-35623: updates to change php-drivers URL to php

[ccho-mongodb]

Pull Request Info

PR Reviewing Guidelines

JIRA - https://jira.mongodb.org/browse/DOCSP-35623
Staging:

• PHP landing page

Note: the index page link for PHP doesn't work due to how the button-type components are rendered on staging.

Redirects diff ("<" points to the redirects currently in the deployed branch, ">" points to the redirects in this PR):

140c140
< Redirect 301 /docs/drivers/drivers/php/ https://www.mongodb.com/docs/drivers/php-drivers/
---
> Redirect 301 /docs/drivers/drivers/php/ https://www.mongodb.com/docs/drivers/php/
149c149
< Redirect 301 /docs/drivers/php/ https://www.mongodb.com/docs/drivers/php-drivers/
---
> Redirect 301 /docs/drivers/php-drivers/ https://www.mongodb.com/docs/drivers/php/

Self-Review Checklist

• Is this free of any warnings or errors in the RST?
• Did you run a spell-check?
• Did you run a grammar-check?
• Are all the links working?
• Are the facets and meta keywords accurate?

[jordan-smith721]

LGTM