Backport NODE-5188 to v4.x.

Parent Ticket Description:

Use Case

Deno when running with Node.js compatibility will still report a client metadata platform that has "Node.js" and Node.js version information. Instead we can feature detect Deno and modify the platform information to be more accurate.

User Impact

• Client metadata is more accurate for the runtime executing the driver.

Unknowns

• Can we access Deno version information?
  • Yes, under Deno.version.deno
• Can we access Bun version information?
  • Yes, under Bun.version

Acceptance Criteria

Implementation Requirements

• if a Deno property exists on globalThis:
  • Change the platform to declare 'Deno' as the platform
  • Change the version information to deno's version info, if possible
• if a Bun property exists on globalThis:
  • Change the platform to declare 'Bun' as the platform
  • Change the version information to bun's version info, if possible

• When accessing version information ensure code is robust such that it won't fail but rather select a reasonable default.

Testing Requirements

• Unit test by adding a Deno global object