Aws-cloud-unmap

- Upgrade to Python 3.11
- Upgrade dependencies

- [BUGFIX] Do not fail the reconciling if there are no instances registered to the service - PR [8](https://github.com/spreaker/aws-cloud-unmap/pull/8)
- Documented required IAM privileges - PR [7](https://github.com/spreaker/aws-cloud-unmap/pull/7)

- Introduced a built-in Prometheus exporter - PR [6](https://github.com/spreaker/aws-cloud-unmap/pull/6)

- [BUGFIX] Fixed memory leak - PR [5](https://github.com/spreaker/aws-cloud-unmap/pull/5)

- First release