chore: mark @hono/bun-compress as deprecated

[ghost]

Summary

Marks @hono/bun-compress as deprecated now that Bun supports CompressionStream natively.

The README already stated: "This middleware will be deprecated once Bun adds support for CompressionStream." Bun resolved oven-sh/bun#1723, so hono/compress now works on Bun without any polyfill.

Changes

• Add deprecated field to package.json (shows warning on npm install)
• Update description to indicate deprecation
• Rewrite README with deprecation notice and migration guide

Migration for users

- import { compress } from '@hono/bun-compress'
+ import { compress } from 'hono/compress'

Closes #1807

[changeset-bot]

🦋 Changeset detected

Latest commit: 1ec73c2

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@hono/bun-compress	Patch

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[yusukebe]

Hey @ctonneslan

Thank you for the PR. Can you add a changeset by running the yarn changeset command at the top of the project? I think making the change patch is better.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.73%. Comparing base (af99687) to head (1ec73c2).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1809   +/-   ##
=======================================
  Coverage   91.73%   91.73%           
=======================================
  Files         113      113           
  Lines        3785     3785           
  Branches      957      957           
=======================================
  Hits         3472     3472           
  Misses        281      281           
  Partials       32       32           

Flag	Coverage Δ
bun-compress	78.94% <ø> (ø)

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[ghost]

Added a patch changeset for @hono/bun-compress. Thanks for the review!

[yusukebe]

LGTM!

[yusukebe]

@ctonneslan

Good job! Thank you for your contribution!