fix(da): fix polling fallback when ws not available #2708

Job	Run time
Detect code changes	7s
Determine Image Tag	3s
proto / buf-check	6s
lint / markdown-lint	3m 26s
lint / hadolint	9s
lint / goreleaser-check	9s
test / Run Unit Tests	4m 24s
lint / yamllint	9s
test / Build All ev-node Binaries	2m 51s
test / Go Mod Tidy Check	35s
test / Run Integration Tests	2m 15s
lint / golangci-lint	1m 46s
docker / Build ev-node-grpc	18m 4s
docker / Build ev-node-loadgen	25s
docker / Build ev-node-evm	23m 6s
docker / Build ev-node-testapp	18m 3s
test / Run E2E System Tests	12m 10s
test / Run EVM Execution Tests	2m 39s
test / Combine and Upload Coverage	0s
docker-tests / Docker Compatibility E2E Tests	4m 49s
docker-tests / Docker Upgrade E2E Tests	3m 41s
docker-tests / Docker E2E Tests	7m 0s
	1h 45m 57s

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