docs: clarify DA-only sync mode configuration #7054

Job	Run time
branch_name	2s
lint / goreleaser-check	8s
lint / yamllint	7s
lint / golangci-lint	13s
lint / markdown-lint	1m 30s
test / Build ev-node Docker Image	13m 25s
test / Build ev-node EVM Single Docker Image	14m 52s
test / Build All ev-node Binaries	1m 52s
test / Go Mod Tidy Check	48s
proto / buf-check	9s
test / Run Integration Tests	1m 20s
test / Run Unit Tests	3m 55s
lint / hadolint / hadolint	8s
test / Run EVM Execution Tests	2m 24s
test / Run E2E System Tests	4m 13s
test / Combine and Upload Coverage	10s
test / Docker E2E Tests	3m 5s
release	0s
branch_name	2s
lint / yamllint	7s
lint / golangci-lint	13s
lint / goreleaser-check	8s
lint / markdown-lint	1m 21s
test / Build All ev-node Binaries	1m 52s
test / Go Mod Tidy Check	48s
test / Run Integration Tests	1m 20s
proto / buf-check	9s
test / Build ev-node Docker Image	13m 25s
test / Build ev-node EVM Single Docker Image	14m 52s
test / Run Unit Tests	3m 55s
lint / hadolint / hadolint	8s
test / Docker E2E Tests	3m 9s
test / Run EVM Execution Tests	2m 24s
test / Run E2E System Tests	6m 42s
test / Combine and Upload Coverage	10s
release	0s
	1h 39m 6s

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