Update MonthlyLinkCheck.yml

Resolving issue #3633
Workflow failing due to updates in lychee handling of relative links

Author: sekyondaMeta

.github/workflows/MonthlyLinkCheck.yml

@@ -22,7 +22,7 @@ jobs:
         id: lychee
         uses: lycheeverse/lychee-action@v2
         with:
-          args: --accept=200,403,429 --base . --verbose --no-progress './**/*.md' './**/*.html' './**/*.rst'
+          args: --accept=200,403,429 --base $GITHUB_WORKSPACE --verbose --no-progress './**/*.md' './**/*.html' './**/*.rst'
           token: ${{ secrets.CUSTOM_TOKEN }}
           fail: true