chore: also exclude changelog file from link checker

Author: SimenB

.github/workflows/markdown-link-check.yml

@@ -31,5 +31,6 @@ jobs:
         run: yarn
       - name: Run markdown-link-check on MD files
         run:
-          find . -name "*.md" | grep -v node_modules | xargs -n 1 yarn
-          markdown-link-check -c markdown_link_check_config.json -q
+          find . -name "*.md" | grep -v node_modules | grep -v CHANGELOG.md |
+          xargs -n 1 yarn markdown-link-check -c markdown_link_check_config.json
+          -q