CI: bump cln to v24.08 #526

Job	Run time
build-lspd	31s
setup-bitcoin-core	7s
setup-cln	10s
Run unit tests	1m 14s
setup-itest	15s
setup-lnd-client	5s
setup-lnd-lsp	7s
CLN-lsp CLN-client testLsps0GetProtocolVersions	1m 12s
CLN-lsp CLN-client testLsps2GetVersions	1m 23s
test CLN-lsp CLN-client testRestartLspNode	1m 34s
CLN-lsp CLN-client testLsps2GetInfo	1m 36s
test CLN-lsp CLN-client testOpenZeroConfChannelOnReceive	1m 25s
CLN-lsp CLN-client testLsps2Buy	1m 31s
test CLN-lsp CLN-client testOpenZeroConfSingleHtlc	1m 34s
CLN-lsp CLN-client testLsps2HappyFlow	1m 51s
test CLN-lsp CLN-client testZeroReserve	1m 29s
CLN-lsp CLN-client testLsps2NoBalance	1m 26s
test CLN-lsp CLN-client testFailureBobOffline	1m 38s
CLN-lsp CLN-client testLsps2ZeroConfUtxo	1m 34s
test CLN-lsp CLN-client testNoBalance	1m 29s
test CLN-lsp CLN-client testRegularForward	1m 27s
test CLN-lsp CLN-client testProbing	1m 47s
test CLN-lsp CLN-client testInvalidCltv	1m 43s
test CLN-lsp CLN-client registerPaymentWithTag	1m 7s
test CLN-lsp CLN-client testOpenZeroConfUtxo	1m 27s
test CLN-lsp CLN-client testDynamicFeeFlow	1m 28s
test CLN-lsp CLN-client testOfflineNotificationPaymentRegistered	1m 27s
test CLN-lsp CLN-client testOfflineNotificationRegularForward	1m 28s
test CLN-lsp CLN-client testOfflineNotificationZeroConfChannel	1m 52s
	35m 57s

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