chore: update opentelemetry-cpp, protobuf, GitHub Actions and fix fla… #493

Job	Run time
pktvisor (x86_64, x86_64, https://github.com/netboxlabs/pktvisor/releases/download/toolchains/x86...	20m 57s
pktvisor (aarch64, armv8, https://github.com/netboxlabs/pktvisor/releases/download/toolchains/aar...	25m 5s
pktvisor-cli (macos, x86_64)	52s
pktvisor-cli (linux, armv7lh)	56s
pktvisor-cli (macos, aarch64)	56s
pktvisor-cli (linux, aarch64)	59s
pktvisor-cli (linux, x86_64)	54s
	50m 39s

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