feat: GitHub Actions should not pull the latest code

[wuyiping0628]

Summary by CodeRabbit

• Chores
  • Simplified submodule handling in CI/deploy workflows by streamlining initialization and update steps.
• Style
  • Minor whitespace cleanup in the site theme stylesheet.

[coderabbitai]

Walkthrough

Removed recursive submodule synchronization and remote-merge commands from three GitHub Actions workflows; each workflow now only runs git submodule update --init --recursive and git submodule status --recursive. A minor whitespace line was removed in VitePress theme CSS.

Changes

Cohort / File(s)	Summary
Workflow Submodule Updates .github/workflows/build-docs.yml, .github/workflows/deploy-github.yml, .github/workflows/deploy-obs.yml	Deleted git submodule sync --recursive and git submodule update --remote --merge --recursive. Workflows now rely solely on git submodule update --init --recursive (and status checks) for submodule handling.
Style tweak .vitepress/theme/style.css	Removed a single blank line between global styles and .dark .VPContent; no selector or property changes.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Poem

🐰
I hopped through CI with careful paws,
Trimmed the sync and merged their laws,
Now submodules wake with simple cheer,
Fewer steps to start the year. ✨

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: removing commands that pull the latest code from submodule remotes across three GitHub Actions workflows.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Merge Conflict Detection	✅ Passed	✅ No merge conflicts detected when merging into dev

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch wyp/yaml-0213

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No actionable comments were generated in the recent review. 🎉

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