Add option to prevent duplicated events or limit frequency

[satrun77]

Includes 2 features

• Limit events sent to Raygun to one per an error message
• Reduce events sent to Raygun to every x seconds

Limit Raygun events

Add the following to your YML configuration to limit sending one Raygun event per error message.

SilverStripe\Raygun\RaygunHandler:
  enabled_limit: true

Error identified using the record fields (message, level.value, channel). It can be updated using the hook

use Monolog\LogRecord;

class RaygunExtension extends Extension {
    public function updateErrorKey(&$errorKey, LogRecord $record) {
        $errorKey = 'New value';
    }
}

Reduce Raygun events frequency

Add the following to your YML configuration, value is number of seconds.

SilverStripe\Raygun\RaygunHandler:
  report_frequency: 300 # Similar error message sent to Raygun every 5 minutes

Unit tests:
https://github.com/satrun77/silverstripe-raygun/actions/runs/7954518857