Update Hugo to 0.157.0 and Docsy to v0.14.3

[Copilot]

Hugo was pinned to 0.110.0 with an unversioned Docsy submodule commit (~v0.5.x). This updates both to current releases and aligns all supporting tooling.

Hugo & Docsy

• Docsy submodule: old unversioned commit → v0.14.3 (c8162c2)
• Hugo: 0.110.0 → 0.157.0
• config.toml minimum Hugo version: 0.73.0 → 0.146.0 (Docsy v0.14.3 requirement)
• Removed deprecated [blackfriday] config block (superseded by Goldmark since Hugo 0.60)
• Removed redundant node_modules/bootstrap and node_modules/@fortawesome/fontawesome-free module mounts — Docsy v0.14.3 manages these via its own hugo.yaml

CI Workflow

• actions/checkout@v2 → @v4; peaceiris/actions-hugo@v2 → @v3; peaceiris/actions-gh-pages@v3 → @v4
• Added actions/setup-node@v4 (Node 22) — required by Docsy v0.14.3
• Replaced global npm install with npm ci in both project root and themes/docsy/ for reproducible installs
• Docsy clone now pinned to release tag: --branch v0.14.3 --depth 1

Project tooling

• hugo-extended: ^0.118.2 → ^0.157.0; package-lock.json regenerated at lockfileVersion 3
• Added postcss.config.js to project root (previously absent; relied on Docsy's copy)
• layouts/partials/footer.html: Bootstrap 4 → Bootstrap 5 attributes (data-toggle/data-placement → data-bs-*, ml-1 → ms-1)

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• gohugo.io
  • Triggering command: /usr/bin/curl curl -s REDACTED (dns block)
• www.docsy.dev
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node /home/REDACTED/work/_temp/ghcca-node/node/bin/node --enable-source-maps /home/REDACTED/work/_temp/copilot-developer-action-main/dist/index.js (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

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This section details on the original issue you should resolve

<issue_title>Update Hugo and Docsy</issue_title>
<issue_description>Update Hugo and Docsy to the latest releases and ensure they are compatible.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Update Hugo and Docsy #77

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