docs: remove githubAPICacheDuration from docs
@@ -15,7 +15,6 @@ All additional docs are kept in the `docs/` folder, this README is solely for do
| `syncPeriod` | Set the period in which the controler reconciles the desired runners count | 10m |
| `enableLeaderElection` | Enable election configuration | true |
| `leaderElectionId` | Set the election ID for the controller group | |
-| `githubAPICacheDuration` | Set the cache period for API calls | |
| `githubEnterpriseServerURL` | Set the URL for a self-hosted GitHub Enterprise Server | |
| `githubURL` | Override GitHub URL to be used for GitHub API calls | |
| `githubUploadURL` | Override GitHub Upload URL to be used for GitHub API calls | |
