ci: Fix Dockerfile

[MikuroXina]

Type of Change:

CI の修正

Details of implementation (実施内容)

bun.lock への移行に伴う lockfile の指定変更に対応.

[github-actions]

Hadolint: success

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 49.05%. Comparing base (9d69def) to head (08f8130).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1480   +/-   ##
=======================================
  Coverage   49.05%   49.05%           
=======================================
  Files         112      112           
  Lines        4941     4941           
  Branches      524      524           
=======================================
  Hits         2424     2424           
  Misses       1994     1994           
  Partials      523      523           

Flag	Coverage Δ
unittests	49.05% <ø> (ø)

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[github-actions]

Hadolint: success

[cloudflare-workers-and-pages]

Deploying oreorebot2 with    Cloudflare Pages

Latest commit:	08f8130
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Branch Preview URL:	https://fix-docker.oreorebot2.pages.dev

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