Update lychee to try and avoid rate-limiting

- To avoid rate-limiting, update to v2 in actions and set max-retries | max-concurrency | cache in both the local installation and the Action. Tested with version 0.18.0 locally, which removed the rate-limiting 429 response from learn.microsoft.com

.github/workflows/build.yml

@@ -55,13 +55,20 @@ jobs:
         with:
           name: _site
           path: _site
-
+
+      - name: Restore lychee cache
+        uses: actions/cache@v4
+        with:
+          path: .lycheecache
+          key: cache-lychee-${{ github.sha }}
+          restore-keys: cache-lychee-
+
       # This checks for missing / broken links in the *.html files after building the website.
       # We need to run this step here to check that all auto-generated API pages have valid links too.
       - name: Check HTML Links After Building
-        uses: lycheeverse/lychee-action@v1.10.0
+        uses: lycheeverse/lychee-action@v2
         with:
-          args: --verbose --no-progress --base _site --exclude ^https://github\.com.*merge.* --exclude ^https://github\.com.*apiSpec.* '_site/**/*.html' --accept 429
+          args: --verbose --no-progress --base _site --exclude ^https://github\.com.*merge.* --exclude ^https://github\.com.*apiSpec.* '_site/**/*.html --max-retries 0 --max-concurrency 32 --cache --max-cache-age 1d'
           fail: true
 
   deploy:

.gitignore

@@ -13,4 +13,7 @@ _*/
 *.exe
 *.exe.old
 *.exe.settings
-Packages
+Packages
+
+## Lychee cache
+.lycheecache

docfx-utils.ps1

@@ -22,7 +22,7 @@ function lychee($lycheePath)
 {
     Write-Output "`nRunning lychee..."
     Write-Output "------------------------------------------`n"
-    Invoke-Expression "& `"$lycheePath`" --no-progress --base _site --exclude ^https://github\.com.*merge.* --exclude ^https://github\.com.*apiSpec.* --exclude ^https://github\.com/open-ephys/onix1-bonsai-docs/blob/.*/#L1 '_site/**/*.html' --accept 429"
+    Invoke-Expression "& `"$lycheePath`" --no-progress --base _site --exclude ^https://github\.com.*merge.* --exclude ^https://github\.com.*apiSpec.* --exclude ^https://github\.com/open-ephys/onix1-bonsai-docs/blob/.*/#L1 '_site/**/*.html' --max-retries 0 --max-concurrency 32 --cache --max-cache-age 1d"
     Write-Output "`n"
 }