docs: Don't install linkcheck in main run

Signed-off-by: Colin Walters <[email protected]>

.github/workflows/docs.yml

@@ -35,14 +35,6 @@ jobs:
           mkdir mdbook-mermaid
           curl -sSL $url | tar -xz --directory=./mdbook-mermaid
           echo `pwd`/mdbook-mermaid >> $GITHUB_PATH
-      - name: Install mdbook-linkcheck
-        run: |
-          tag=$(curl 'https://api.github.com/repos/Michael-F-Bryan/mdbook-linkcheck/releases/latest' | jq -r '.tag_name')
-          archive="mdbook-linkcheck.x86_64-unknown-linux-gnu.zip"
-          url="https://github.com/Michael-F-Bryan/mdbook-linkcheck/releases/download/${tag}/${archive}"
-          mkdir mdbook-linkcheck
-          curl -sSL -O $url && unzip ${archive} -d ./mdbook-linkcheck && chmod +x ./mdbook-linkcheck/mdbook-linkcheck
-          echo `pwd`/mdbook-linkcheck >> $GITHUB_PATH
       - name: Setup Pages
         id: pages
         uses: actions/configure-pages@v4

docs/book.toml

@@ -12,3 +12,4 @@ command = "mdbook-mermaid"
 additional-js = ["mermaid.min.js", "mermaid-init.js"]
 
 [output.linkcheck]
+optional=true