ci(mergify): upgrade configuration to current format #4540

Job	Run time
cleanup-runs	5s
install-tparse	13s
build (amd64, gcc)	35s
build (arm64, aarch64-linux-gnu-gcc, g++-aarch64-linux-gnu)	1m 17s
test-cosmovisor	23s
split-test-files	11s
tests (00)	19s
test-race (00)	18s
tests (01)	24s
test-race (01)	18s
tests (02)	17s
test-race (02)	19s
tests (03)	19s
test-race (03)	33s
upload-coverage-report	11s
	5m 42s

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