CI: bump cln to v24.08 #518

Job	Run time
setup-lnd-lsp	14s
build-lspd	32s
setup-cln	5s
Run unit tests	1m 7s
setup-bitcoin-core	6s
setup-lnd-client	5s
setup-itest	6s
CLN-lsp CLN-client testLsps0GetProtocolVersions	1m 18s
CLN-lsp CLN-client testLsps2GetVersions	1m 22s
test CLN-lsp CLN-client testRestartLspNode	1m 26s
CLN-lsp CLN-client testLsps2GetInfo	1m 39s
CLN-lsp CLN-client testLsps2Buy	1m 29s
test CLN-lsp CLN-client testOpenZeroConfChannelOnReceive	1m 35s
CLN-lsp CLN-client testLsps2HappyFlow	1m 28s
test CLN-lsp CLN-client testOpenZeroConfSingleHtlc	1m 32s
CLN-lsp CLN-client testLsps2NoBalance	1m 30s
test CLN-lsp CLN-client testZeroReserve	1m 36s
CLN-lsp CLN-client testLsps2ZeroConfUtxo	1m 34s
test CLN-lsp CLN-client testFailureBobOffline	1s
test CLN-lsp CLN-client testNoBalance	1s
test CLN-lsp CLN-client testRegularForward	1s
test CLN-lsp CLN-client testProbing	1s
test CLN-lsp CLN-client testInvalidCltv	1s
test CLN-lsp CLN-client registerPaymentWithTag	1s
test CLN-lsp CLN-client testOpenZeroConfUtxo	1s
test CLN-lsp CLN-client testDynamicFeeFlow	1s
test CLN-lsp CLN-client testOfflineNotificationPaymentRegistered	1s
test CLN-lsp CLN-client testOfflineNotificationRegularForward	1s
test CLN-lsp CLN-client testOfflineNotificationZeroConfChannel	1s
	18m 55s

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