Migrate `tonic` to workspace #3837

Job	Run time
Integration Tests	3m 30s
Kani Proofs (lading_throttle)	58s
cargo-deny	38s
Kani Proofs (lading_payload)	2m 32s
Rust Actions (Check/Fmt/Clippy) (ubuntu-latest)	46s
Test Suite	31m 23s
Rust Actions (Check/Fmt/Clippy) (macos-latest)	1m 0s
actionlint	7s
action-sha-pin-check	52s
buf	21s
Loom Proofs (lading_signal)	5m 36s
	47m 43s

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