Add --existing-hasura-url flag for indexer API in localnet #67901

Job	Run time
permission-check	3s
file_change_determinator	11s
fetch-last-released-docker-image-tag	1m 50s
test-target-determinator	4m 16s
determine-docker-build-metadata	1s
rust-images-consensus-only-perf-test	0s
rust-images-performance	0s
rust-images-failpoints	0s
rust-images / rust-all	15m 38s
forge-consensus-only-perf-test	0s
forge-multiregion-test	0s
faucet-tests-main / run-tests-main	0s
forge-e2e-test / forge	14m 27s
cli-e2e-tests / run-cli-tests	4m 33s
forge-compat-test / forge	19m 14s
node-api-compatibility-tests / node-api-compatibility-tests	52s
forge-framework-upgrade-test / forge	17m 5s
	1h 18m 10s

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