Exclude web checks on eigen.tuxfamily.org.

Is down several times a year for several days each...

scripts/ci/jobs/build-docs.yml

@@ -98,6 +98,7 @@ check docs links:
       --exclude gitlab.opengeosys.org/ogs/ogs
       --exclude github.com/ufz/ogs/commit/\%1
       --exclude search_opensearch.php
+      --exclude eigen.tuxfamily.org
       build/docs
     - lychee --cache --max-cache-age 14d
       --max-concurrency 2

web/lychee.toml

@@ -6,5 +6,6 @@ exclude = [
   "localhost:1313",
   "smartkd-concept\\.de",
   "all\\.css",
+  "eigen\\.tuxfamily.org",
 ]
 exclude_path = ["public/releases/"]