feat: change link checking to periodic (#1140)

Given the amount of false positives we run into at every time when we
are adding a new page to docs, it makes sense to change the link
checking job to periodic instead of at every PR.

---------

Co-authored-by: Martin Adámek <[email protected]>

Author: TC-MO

.github/workflows/lychee.yml

@@ -1,6 +1,9 @@
-name: Lychee Link Checker
+name: Periodic Link Checker
 
-on: [ pull_request ]
+on:
+    schedule:
+        -   cron: '0 0 * * *'  # Run daily at midnight UTC
+    workflow_dispatch:  # Allow manual triggering
 
 jobs:
     link-check:
@@ -28,9 +31,25 @@ jobs:
                     NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
                     SMARTLOOK_PROJECT_KEY: ${{ secrets.SMARTLOOK_PROJECT_KEY }}
 
-            -   uses: lycheeverse/[email protected]
+            -   name: Run Lychee Link Checker
+                id: lychee
+                uses: lycheeverse/[email protected]
                 env:
                     GITHUB_TOKEN: ${{ secrets.APIFY_SERVICE_ACCOUNT_GITHUB_TOKEN }}
                 with:
-                    fail: true
-                    args: --base https://docs.apify.com --exclude-path 'build/versions.html' --max-retries 6 --verbose --no-progress --accept '100..=103,200..=299,403..=403, 429' './build/**/*.html'
+                    fail: false
+                    args: >
+                        --base https://docs.apify.com
+                        --exclude-path 'build/versions.html'
+                        --max-retries 6
+                        --verbose
+                        --no-progress
+                        --accept '100..=103,200..=299,403..=403,429'
+                        --output ./lychee/out.md
+                        --format markdown
+                        './build/**/*.html'
+                continue-on-error: true
+
+            -   name: Add job summary
+                if: always()
+                run: cat ./lychee/out.md >> $GITHUB_STEP_SUMMARY