OpsGenie Integration - alerts are not being acknowledged

### Environment SaaS (https://sentry.io/) ### Steps to Reproduce 1. Trigger an issue with OpsGenie integration enabled 2. See the alert created on OpsGenie with the Alias being `"sentry: {ISSUE_ID}"` 3. Resolve the issue on Sentry ---- It might be because you seem to be using two different aliases in your integration: 1. `sentry: {ISSUE_ID}`, see [/src/sentry/integrations/opsgenie/client.py](https://github.com/getsentry/sentry/blob/4af7bd123d08eea9e1961c87b860551faeca9be5/src/sentry/integrations/opsgenie/client.py#L73) 2. `incident_{ORGANISATION_ID}_{ISSUE_ID}`, see [/src/sentry/integrations/opsgenie/utils.py](https://github.com/getsentry/sentry/blob/4af7bd123d08eea9e1961c87b860551faeca9be5/src/sentry/integrations/opsgenie/utils.py#L29) ### Expected Result 1. The alert should be acknowledged on OpsGenie ### Actual Result 1. The alert is not acknowledged on OpsGenie. ### Product Area Settings - Integrations ### Link - issue [#74256](https://github.com/getsentry/sentry/issues/74256) - issue [#62261](https://github.com/getsentry/sentry/issues/62261)