chore: replace linkcheck by lychee (#482)

* chore: replace linkcheck by lychee

* fix step order in docs workflow

.woodpecker/docs.yml

@@ -13,30 +13,30 @@ steps:
 
   markdownlint:
     image: quay.io/thegeeklab/markdownlint-cli
+    group: test
     commands:
       - markdownlint 'README.md' 'CONTRIBUTING.md'
 
   spellcheck:
     image: quay.io/thegeeklab/alpine-tools
+    group: test
     commands:
       - spellchecker --files '_docs/**/*.md' 'README.md' 'CONTRIBUTING.md' -d .dictionary -p spell indefinite-article syntax-urls
     environment:
       FORCE_COLOR: "true"
       NPM_CONFIG_LOGLEVEL: "error"
 
+  link-validation:
+    image: docker.io/lycheeverse/lychee
+    group: test
+    commands:
+      - lychee --no-progress --format detailed docs/content README.md
+
   testbuild:
     image: quay.io/thegeeklab/hugo:0.115.2
     commands:
       - hugo --panicOnWarning -s docs/ -b http://localhost:8000/
 
-  link-validation:
-    image: quay.io/thegeeklab/link-validator
-    commands:
-      - link-validator --color=always --rate-limit 10
-    environment:
-      LINK_VALIDATOR_BASE_DIR: docs/public
-      LINK_VALIDATOR_RETRIES: "3"
-
   build:
     image: quay.io/thegeeklab/hugo:0.115.2
     commands: