fix: exclude SECURITY.md from links check

templates/validation.yml

@@ -63,4 +63,4 @@ check-links:
     entrypoint: [""]
   stage: build
   script:
-    - lychee --exclude-path CHANGELOG.md $LYCHEE_EXTRA_OPTS *.md
+    - lychee --exclude-path CHANGELOG.md --exclude-path SECURITY.md $LYCHEE_EXTRA_OPTS *.md