ci: Replace markdown-link-check with Linkspector

Ref. gaurav-nelson/github-action-markdown-link-check@7d83e59a57

.github/workflows/docs.yml

@@ -18,12 +18,14 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Check links
-        uses: gaurav-nelson/github-action-markdown-link-check@v1
+        uses: UmbrellaDocs/action-linkspector@v1
         with:
-          config-file: .github/workflows/mlc_config.json
+          config_file: .github/workflows/lint/linkspector.yml
+          fail_on_error: 'true'
+          filter_mode: nofilter
 
       - name: Lint
         uses: avto-dev/markdown-lint@v1
         with:
           args: '**/*.md'
-          config: .github/workflows/lint/markdown.yaml
+          config: .github/workflows/lint/markdown.yml

.github/workflows/lint/linkspector.yml

@@ -0,0 +1,3 @@
+dirs: [ . ]
+ignorePatterns:
+  - pattern: '^http:\/\/localhost:'

.github/workflows/mlc_config.json

@@ -1,5 +0,0 @@
-{
-  "ignorePatterns": [
-    { "pattern": "^http:\/\/localhost:" }
-  ]
-}