refactor: retrieve highest da height in cache #216

Job	Run time
Determine Image Tag	2s
lint / hadolint	13s
lint / golangci-lint	1m 13s
lint / markdown-lint	17s
lint / yamllint	8s
lint / goreleaser-check	10s
test / Run Unit Tests	2m 52s
test / Go Mod Tidy Check	24s
proto / buf-check	10s
test / Run Integration Tests	1m 41s
test / Build All ev-node Binaries	1m 23s
docker / Build ev-node-testapp	15m 12s
docker / Build ev-node-evm-single	15m 28s
test / Run E2E System Tests	4m 39s
test / Run EVM Execution Tests	2m 3s
test / Combine and Upload Coverage	0s
docker-tests / Docker Upgrade E2E Tests	3m 30s
docker-tests / Docker E2E Tests	6m 48s
	56m 13s

Provide feedback