chore: Add time option to manual fuzz trigger.

This allows us to test things with less than 1 hour of waiting time.

.github/workflows/cflite_batch.yml

@@ -6,6 +6,12 @@ on:
   schedule:
     - cron: '0 6,8 * * *'  # Run twice a day at low activity times
   workflow_dispatch:       # Manual trigger for testing
+    inputs:
+      fuzz-seconds:
+        description: 'Number of seconds to fuzz (total, not per test)'
+        required: false
+        type: number
+        default: 3600
 
 permissions: read-all
 
@@ -30,7 +36,8 @@ jobs:
       uses: google/clusterfuzzlite/actions/run_fuzzers@v1
       with:
         github-token: ${{ secrets.GITHUB_TOKEN }}
-        fuzz-seconds: 3600 # 60min
+        # default to 60 min
+        fuzz-seconds: ${{ github.event.inputs.fuzz-seconds || 3600 }}
         mode: 'batch'
         sanitizer: ${{ matrix.sanitizer }}
         # Optional but recommended: For storing certain artifacts from fuzzing.