CI: bump cln to v24.08 #525

Job	Run time
setup-cln	4s
setup-bitcoin-core	3s
Run unit tests	1m 9s
build-lspd	27s
setup-itest	6s
setup-lnd-client	5s
setup-lnd-lsp	11s
test CLN-lsp CLN-client testRestartLspNode	1m 48s
CLN-lsp CLN-client testLsps0GetProtocolVersions	1m 25s
test CLN-lsp CLN-client testOpenZeroConfChannelOnReceive	1m 26s
CLN-lsp CLN-client testLsps2GetVersions	1m 22s
test CLN-lsp CLN-client testOpenZeroConfSingleHtlc	1m 34s
CLN-lsp CLN-client testLsps2GetInfo	1m 17s
test CLN-lsp CLN-client testZeroReserve	1m 47s
CLN-lsp CLN-client testLsps2Buy	1m 29s
test CLN-lsp CLN-client testFailureBobOffline	1m 48s
CLN-lsp CLN-client testLsps2HappyFlow	1m 42s
test CLN-lsp CLN-client testNoBalance	1m 33s
CLN-lsp CLN-client testLsps2NoBalance	1m 42s
test CLN-lsp CLN-client testRegularForward	1m 29s
CLN-lsp CLN-client testLsps2ZeroConfUtxo	1m 57s
test CLN-lsp CLN-client testProbing	1m 35s
test CLN-lsp CLN-client testInvalidCltv	1m 20s
test CLN-lsp CLN-client registerPaymentWithTag	1m 20s
test CLN-lsp CLN-client testOpenZeroConfUtxo	1m 28s
test CLN-lsp CLN-client testDynamicFeeFlow	1m 18s
test CLN-lsp CLN-client testOfflineNotificationPaymentRegistered	1s
test CLN-lsp CLN-client testOfflineNotificationRegularForward	1s
test CLN-lsp CLN-client testOfflineNotificationZeroConfChannel	1s
	31m 28s

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