CI: bump cln to v24.08 #519

Job	Run time
Run unit tests	1m 12s
setup-bitcoin-core	4s
setup-cln	8s
build-lspd	41s
setup-itest	9s
setup-lnd-client	4s
setup-lnd-lsp	7s
CLN-lsp CLN-client testLsps0GetProtocolVersions	1m 35s
test CLN-lsp CLN-client testRestartLspNode	1m 33s
CLN-lsp CLN-client testLsps2GetVersions	1m 37s
test CLN-lsp CLN-client testOpenZeroConfChannelOnReceive	1m 23s
CLN-lsp CLN-client testLsps2GetInfo	1m 12s
test CLN-lsp CLN-client testOpenZeroConfSingleHtlc	1m 42s
CLN-lsp CLN-client testLsps2Buy	1m 23s
test CLN-lsp CLN-client testZeroReserve	1m 25s
CLN-lsp CLN-client testLsps2HappyFlow	1m 40s
test CLN-lsp CLN-client testFailureBobOffline	1s
CLN-lsp CLN-client testLsps2NoBalance	1m 25s
test CLN-lsp CLN-client testNoBalance	1s
CLN-lsp CLN-client testLsps2ZeroConfUtxo	1m 25s
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 56s

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