refactor: retrieve highest da height in cache #220

Job	Run time
Determine Image Tag	2s
proto / buf-check	9s
lint / hadolint	11s
lint / yamllint	11s
lint / goreleaser-check	8s
lint / golangci-lint	1m 24s
lint / markdown-lint	1m 50s
test / Build All ev-node Binaries	1m 23s
test / Run Unit Tests	2m 57s
test / Go Mod Tidy Check	30s
test / Run Integration Tests	1m 45s
docker / Build ev-node-testapp	14m 17s
docker / Build ev-node-evm-single	16m 0s
test / Run E2E System Tests	5m 34s
test / Run EVM Execution Tests	2m 3s
test / Combine and Upload Coverage	12s
docker-tests / Docker E2E Tests	6m 30s
docker-tests / Docker Upgrade E2E Tests	3m 43s
	58m 49s

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