cache put back to 6 hours

Author: aidankmcalister

.github/workflows/lychee.yml

@@ -19,7 +19,7 @@ jobs:
           output: ../lychee/out.md
           args: >
             --cache
-            --max-cache-age 30s
+            --max-cache-age 6h
             --no-progress
             --accept 200,201,204,304,403,429
             --timeout 20
@@ -69,5 +69,5 @@ jobs:
           body-path: lychee/formatted.md
 
       - name: 🚫 Fail if broken links found
-        if: steps.lychee.outputs.exit_code != 0
+        if: ${{ steps.lychee.outputs.exit_code != 0 }}
         run: exit ${{ steps.lychee.outputs.exit_code }}