feat(rate-limit): Allow overwriting the rate limit

[nickvergessen]

• Allow admins to overwrite the rate-limit of a specific controller method

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)
• Labels added where applicable (ex: bug/enhancement, 3. to review, feature component)
• Milestone added for target branch/version (ex: 32.x for stable32)

[nickvergessen]

/backport to stable32

[nickvergessen]

/backport to stable31

[kesselb]

Here's an example of how to use it:

 'ratelimit_overwrite' => [
'dashboard.dashboardapi.getwidgets' => [
'user' => ['limit' => 10, 'period' => 60], // use anon instead of user for guest users or fallback of logged in users
],
],

[nickvergessen]

Here's an example of how to use it:

I added it to sample config