feat: implement the analyzer command. (#13)

* feat: implement the `analyzer` command.

This commit introduces the `sprocket analyzer` command that can be used to run
sprocket as an LSP server.

The command currently takes two options:

* `--lint`: whether or not to enable lints in analysis.
* `--stdio` (currently required): use stdio as the transport channel for the
  server.

This commit also updates all dependencies to latest and adds `Cargo.lock` to
the repository for consistent builds, which is desirable for bin projects like
`sprocket`.

* chore: Update README with `sprocket analyzer` command.

CHANGELOG.md

@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Added
+
+- Added `analyzer` subcommand to sprocket ([#9](https://github.com/stjude-rust-labs/sprocket/pull/9)).
+- Updated dependencies to latest ([#9](https://github.com/stjude-rust-labs/sprocket/pull/9)).
+
 ## 0.5.0 - 07-17-2024
 
 ### Changed