Optionally, skip Bitcoin Core version check

[0xB10C]

fork-observer/src/main.rs

Lines 780 to 786 in a6e2956

	async fn load_node_version(node: BoxedSyncSendNode, network: &str) -> String {
	// The Bitcoin Core version is requested via the getnetworkinfo RPC. This
	// RPC exposes sensitive information to the caller, so it might not be
	// allowed on the whitelist. We set the version to VERSION_UNKNOWN if we
	// can't request it. As RPC interface might not be up yet, we
	// try to request the version multiple times.
	let mut interval = interval(Duration::from_secs(10));

These 5x 10s are hardcoded. Would be good to be able to skip this via a node configuration option if we know this version information isn't available.

I could use this to speed up the peer-observer-infrastructure integration tests.