crates/trycp_server/Cargo.lock was removed, breaking downstream builds

[steveej]

it was removed in 1e94fe2

the trycp_server crate has been part of the workspace for over two years, since: 8affc33

hence i'm not sure if the removing of its own Cargo.lock was intentional.

the CI tests explicit change into the crate directory for testing:

tryorama/build-trycp.sh

Lines 5 to 6 in a44a536

	cd crates/trycp_server
	cargo build --release --target-dir target

things i'm going to double-check and will update this issue with:

• does the top-level lockfile generally have the trycp_server dependencies?
• is the top-level lockfile updated currently up to date with the trycp_server Cargo.toml?

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as a follow-up to keep this repo consistent the following item is relevant:

• is the top-level lockfile updated regularly?