chore: introduce `tracing`

[nyannyacha]

What kind of change does this PR introduce?

Enhancement

Description

Introduces tracing crate to improve the edge runtime debugging experience.

In this PR, I'm not trying to apply tracing to all of the codebase, just the sb_module_loader crate. (There's nothing special about this 😅)

Changes

• cli: Changed the behavior of the -v --verbose cli flag in cli/tracing feature flag When this feature flag is enabled and -v or --verbose flag is set, detailed tracing span events are output to the console.

  With -v or --verbose flag

  ...
  2024-06-24T03:07:11.447652Z DEBUG ThreadId(04) load{specifier="https://deno.land/std/http/status.ts"}: sb_module_loader::standalone::standalone_module_loader: new
  2024-06-24T03:07:11.447670Z DEBUG ThreadId(04) load{specifier="https://deno.land/std/http/status.ts"}: sb_module_loader::standalone::standalone_module_loader: enter
  2024-06-24T03:07:11.447727Z DEBUG ThreadId(04) load{specifier="https://deno.land/std/http/status.ts"}: sb_module_loader::standalone::standalone_module_loader: exit
  2024-06-24T03:07:11.447744Z DEBUG ThreadId(04) load{specifier="https://deno.land/std/http/status.ts"}: sb_module_loader::standalone::standalone_module_loader: close time.busy=57.0µs time.idle=35.7µs
  ...

[github-actions[bot]]

:tada: This PR is included in version 1.54.7 :tada:

The release is available on GitHub release

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