Improve ci #115

Job	Run time
prepare	7s
build (bitcoin-rpc-proxy)	41s
build (bitcoin-whitepaper)	53s
build (bitcoin)	50s
build (btc-rpc-explorer)	39s
build (btc-transmuter)	39s
build (btcpayserver)	38s
build (electrs)	37s
build (electrum)	52s
build (lnd)	38s
build (lndconnect)	42s
build (lnpbp-testkit)	40s
build (nbxplorer)	44s
build (ridetheln)	49s
build (selfhost-dashboard)	38s
build (selfhost)	39s
build (thunderhub)	43s
build (tor-extras)	36s
test-multi-package (btcpayserver-regtest)	5m 46s
test-multi-package (electrum)	2m 48s
test	0s
	20m 39s

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