chore: upgrade fastify #3319

Job	Run time
lint	1m 19s
test-snp	2m 21s
test-rosetta (rosetta-construction)	2m 31s
test-rosetta (rosetta-cli-construction)	2m 31s
test (event-replay)	1m 54s
test (btc-faucet)	1m 54s
test (bns-e2e)	7m 4s
test (bns)	3m 52s
test-rosetta (rosetta-cli-data)	2m 32s
test (api)	13m 32s
test-rosetta (rosetta)	4m 12s
test-2_5 (faucet-stx)	1m 27s
test-2_5 (pox-4-delegate-revoked-stacking)	2m 17s
test-2_5 (pox-4-delegate-aggregation)	2m 17s
test-2_5 (pox-4-rosetta-cycle-phases)	1m 25s
test (rpc)	1m 36s
test-2_5 (pox-4-burnchain-delegate-stx)	2m 4s
test-2_5 (block-zero-handling)	1m 33s
test-2_5 (pox-4-delegate-stacking)	1m 57s
test-2_5 (pox-4-stack-extend-increase)	2m 39s
test-2_5 (pox-4-btc-address-formats)	2m 23s
test-2_5 (pox-4-burnchain-stack-stx)	1m 50s
test-2_5 (pox-4-rosetta-btc-addr-types)	4m 59s
test-2_5 (pox-4-rosetta-segwit)	1m 48s
build-publish	2m 18s
	1h 14m 15s

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