bump upload-artifact version

Signed-off-by: Peter Hillman <peterh@wetafx.co.nz>

Author: peterhillman

.github/workflows/ossfuzz_workflow.yml

@@ -54,7 +54,7 @@ jobs:
         dry-run: false
         language: c++
     - name: Upload Crash
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
       if: failure() && steps.build.outcome == 'success'
       with:
         name: artifacts