* Updated packages, tidied and changed package name from opsgenie to resmoio
* Handle removal of clusterName from API and leader election api change
* Update Dockerfile Go to 1.19
* Test case for parsing minCount properly for #43
* more extensive test case to also match apiVersion config
remove `GOARCH` env in Dockerfile to support multi arch images.
Building multi arch images is easy with `docker buildx`:
* enable `docker buildx` feature following the [docs](https://docs.docker.com/buildx/working-with-buildx/)
* run `docker buildx create --name builder --use` to create a builder instance(only need run once)
* run following command to build and push muti arch images: `docker buildx build --platform linux/amd64,linux/arm64 -t opsgenie/kubernetes-event-exporter:v0.9 --push .`