fix: randomize key order for testnet stx faucet transactions #2561

Job	Run time
test (api)	9m 53s
test (bns)	3m 24s
test (bns-e2e)	7m 9s
test (btc-faucet)	1m 42s
test (event-replay)	1m 52s
lint	1m 0s
test (rpc)	1m 27s
test-2_5 (block-zero-handling)	1m 18s
test-2_5 (faucet-stx)	1m 17s
test-2_5 (pox-4-btc-address-formats)	2m 12s
test-rosetta (rosetta)	2m 58s
test-2_5 (pox-4-delegate-aggregation)	2m 2s
test-rosetta (rosetta-construction)	2m 14s
test-2_5 (pox-4-delegate-stacking)	1m 41s
test-rosetta (rosetta-cli-data)	2m 2s
test-2_5 (pox-4-delegate-revoked-stacking)	2m 5s
test-rosetta (rosetta-cli-construction)	2m 28s
test-2_5 (pox-4-stack-extend-increase)	2m 21s
test-2_5 (pox-4-rosetta-btc-addr-types)	5m 22s
test-2_5 (pox-4-rosetta-cycle-phases)	1m 12s
test-2_5 (pox-4-rosetta-segwit)	1m 36s
test-2_5 (pox-4-burnchain-stack-stx)	2m 13s
test-2_5 (pox-4-burnchain-delegate-stx)	1m 30s
build-publish	2m 20s
	1h 3m 18s

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