ci(release): drop the broken, redundant docs job (#42)

The release workflow's update-docs job deployed `./docs/build`, but the
docs are Astro and build to `docs/dist` — so it failed with ENOENT on
every tag. It also duplicated docs.yml, which already deploys Pages
correctly (path: docs/dist, official Pages flow) on docs/** pushes.

Remove the job rather than fix it; docs.yml is the single source of truth
for the docs site.

Claude-Session: https://claude.ai/code/session_01M4Dd5oASBGHwr6ts6wTnYn

Author: AYDEV-FR

.github/workflows/release.yml

@@ -170,31 +170,7 @@ jobs:
         run: |
           cosign sign --yes "${REGISTRY}/${{ steps.img.outputs.name }}@${{ steps.build.outputs.digest }}"
 
-  update-docs:
-    name: Update Documentation
-    runs-on: ubuntu-latest
-    needs: release
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v6
-
-      - name: Setup Node.js
-        uses: actions/setup-node@v6
-        with:
-          node-version: '20'
-          cache: 'npm'
-          cache-dependency-path: docs/package-lock.json
-
-      - name: Install dependencies
-        working-directory: docs
-        run: npm ci
-
-      - name: Build documentation
-        working-directory: docs
-        run: npm run build
-
-      - name: Deploy to GitHub Pages
-        uses: peaceiris/actions-gh-pages@v4
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          publish_dir: ./docs/build
+  # Docs deployment lives in docs.yml (Astro -> docs/dist, official Pages
+  # flow), which already runs on docs/** pushes. The job that used to live
+  # here pointed at ./docs/build (wrong for Astro) and duplicated docs.yml,
+  # so it was removed rather than fixed.