feat: add version of Code OSS to output

[jawnsy]

Show the bundled version of Code OSS in the text-based output
for --version and --help, in addition to the JSON output
(--version --json)

Closes: #4874

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Help output:

$ node . --help
code-server 4.0.2 development with Code 1.63.0

Usage: code-server [options] [path]
    - Opening a directory: code-server ./path/to/your/project
    - Opening a saved workspace: code-server ./path/to/your/project.code-workspace

Output of --version:

$ node . --version
4.0.2 development with Code 1.63.0

Output of --version --json:

$ node . --version --json
{"codeServer":"4.0.2","commit":"development","vscode":"1.63.0"}

[github-actions]

✨ Coder.com for PR #4925 deployed! It will be updated on every commit.

• Host: https://codercom-obty41z4k-codercom.vercel.app/docs/code-server
• Last deploy status: success
• Commit: 8fac22e
• Workflow status: https://github.com/coder/code-server/actions/runs/1918214052

[codecov]

Codecov Report

Merging #4925 (8b6a45f) into main (506d3f4) will not change coverage.
The diff coverage is 20.00%.

❗ Current head 8b6a45f differs from pull request most recent head 8fac22e. Consider uploading reports for the commit 8fac22e to get more accurate results

@@           Coverage Diff           @@
##             main    #4925   +/-   ##
=======================================
  Coverage   70.02%   70.02%           
=======================================
  Files          29       29           
  Lines        1658     1658           
  Branches      364      364           
=======================================
  Hits         1161     1161           
  Misses        423      423           
  Partials       74       74           

Impacted Files	Coverage Δ
src/node/entry.ts	0.00% <0.00%> (ø)
src/node/constants.ts	100.00% <100.00%> (ø)

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[jsjoeio]