Github abuse rate limit error

For repos with a lot of commits/pull-requests, the release process fails with:

```
✖ error Went over abuse rate limit GET /repos/{owner}/{repo}/releases/latest, retrying in 1m.
✖ error Went over abuse rate limit GET /repos/{owner}/{repo}/issues/{issue_number}, retrying in 1m.
✖ error Went over abuse rate limit GET /repos/{owner}/{repo}/issues/{issue_number}, retrying in 1m.
✖ error Went over abuse rate limit GET /repos/{owner}/{repo}/issues/{issue_number}, retrying in 1m.
```

**Expected behavior**

Release process should not break.

**Environment information:**

```txt
v11.1.6
```

**Additional context**

This seems to be a secondary rate limit error. I don't see any prior log messages like `Request quota exhausted...`.

[octokit/plugin-throttling](https://github.com/octokit/plugin-throttling.js#readme) has a `fallbackSecondaryRateRetryAfter` configuration option. Perhaps that could be exposed also in the `auto` configuration so that I could increase it?

Alternatively we could upgrade `@octokit/plugin-throttling` to `>=v5.2.3`, [because the rate limit was increased from 5 to 60](https://github.com/octokit/plugin-throttling.js/commit/5335870a005c9dafc3280f221e89bac9d8fab361).

Update: The upgrade seems to be the way to go, because not only was the rate limit increased, also the implementation was improved.