github/workflows: update fuzz.yml

Updates PR #174
diff --git a/.github/workflows/fuzz.yml b/.github/workflows/fuzz.yml
index de14ee5..b915d1a 100644
--- a/.github/workflows/fuzz.yml
+++ b/.github/workflows/fuzz.yml
@@ -1,5 +1,7 @@
 name: CIFuzz
 on: [pull_request]
+permissions: read
+
 jobs:
   Fuzzing:
     runs-on: ubuntu-latest
@@ -16,7 +18,7 @@
         fuzz-seconds: 600
         dry-run: false
     - name: Upload Crash
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v4
       if: failure()
       with:
         name: artifacts