refactor: reaper to drain mempool #2191

Job	Run time
Determine Image Tag	3s
proto / buf-check	9s
test / Build All ev-node Binaries	1m 41s
test / Go Mod Tidy Check	1m 3s
lint / goreleaser-check	9s
lint / hadolint	11s
lint / golangci-lint	1m 47s
test / Run Unit Tests	3m 17s
test / Run Integration Tests	2m 3s
lint / markdown-lint	3m 53s
lint / yamllint	9s
docker / Build ev-node-grpc	21m 20s
docker / Build ev-node-testapp	20m 5s
docker / Build ev-node-evm	20m 52s
test / Run E2E System Tests	13m 11s
test / Run EVM Execution Tests	2m 2s
test / Combine and Upload Coverage	8s
docker-tests / Docker E2E Tests	6m 35s
docker-tests / Docker Upgrade E2E Tests	3m 46s
docker-tests / Docker Compatibility E2E Tests	5m 0s
	1h 47m 24s

Provide feedback