CI workflow updates and clippy lint fixes (#615) #54

Job	Run time
NIF 2.15 - aarch64-unknown-linux-gnu (ubuntu-20.04)	3m 22s
NIF 2.15 - aarch64-unknown-linux-musl (ubuntu-20.04)	3m 30s
NIF 2.15 - aarch64-apple-darwin (macos-12)	4m 16s
NIF 2.15 - x86_64-apple-darwin (macos-12)	5m 32s
NIF 2.15 - x86_64-unknown-linux-gnu (ubuntu-20.04)	3m 8s
NIF 2.15 - x86_64-unknown-linux-musl (ubuntu-20.04)	3m 24s
NIF 2.15 - riscv64gc-unknown-linux-gnu (ubuntu-20.04)	3m 30s
NIF 2.15 - x86_64-pc-windows-gnu (windows-2022)	7m 39s
NIF 2.15 - x86_64-pc-windows-msvc (windows-2022)	6m 22s
NIF 2.15 - x86_64-unknown-freebsd (ubuntu-22.04)	3m 23s
	44m 6s

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