Encode millisecond precision (#1024) #453

Job	Run time
NIF 2.15 - aarch64-apple-darwin (macos-12 \| default)	36m 5s
NIF 2.15 - aarch64-unknown-linux-gnu (ubuntu-20.04 \| default)	20m 41s
NIF 2.15 - aarch64-unknown-linux-musl (ubuntu-20.04 \| default)	19m 51s
NIF 2.15 - x86_64-apple-darwin (macos-12 \| default)	37m 16s
NIF 2.15 - x86_64-pc-windows-gnu (windows-2022 \| default)	30m 22s
NIF 2.15 - x86_64-pc-windows-gnu (windows-2022 \| legacy_cpu)	30m 27s
NIF 2.15 - x86_64-pc-windows-msvc (windows-2019 \| default)	30m 13s
NIF 2.15 - x86_64-pc-windows-msvc (windows-2019 \| legacy_cpu)	29m 49s
NIF 2.15 - x86_64-unknown-freebsd (ubuntu-22.04 \| default)	20m 25s
NIF 2.15 - x86_64-unknown-freebsd (ubuntu-22.04 \| legacy_cpu)	19m 37s
NIF 2.15 - x86_64-unknown-linux-gnu (ubuntu-20.04 \| default)	19m 18s
NIF 2.15 - x86_64-unknown-linux-gnu (ubuntu-20.04 \| legacy_cpu)	19m 20s
NIF 2.15 - x86_64-unknown-linux-musl (ubuntu-20.04 \| default)	18m 46s
	5h 32m 10s

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