feat: Use first 8 characters of SHA

action.yml

@@ -59,7 +59,7 @@ runs:
         MESSAGE='Fuzz test failed on commit ${{ env.SHA }}. To troubleshoot locally, use the [GitHub CLI](https://cli.github.com) to download the seed corpus with\n```\ngh run download ${{ github.run_id }} -n testdata\n```'
         DEEPLINK="https://github.com/${{ github.repository }}/commit/${{ env.SHA }}"
         echo -e "${MESSAGE/${{ env.SHA }}/$DEEPLINK}"
-        echo -e "${MESSAGE/${{ env.SHA }}/[${{ env.SHA }}]($DEEPLINK)}" >> $GITHUB_STEP_SUMMARY
+        echo -e "${MESSAGE/${{ env.SHA }}/[${GITHUB_SHA:0:8}]($DEEPLINK)}" >> $GITHUB_STEP_SUMMARY
     - name: Report failure
       uses: actions/github-script@v6
       if: failure() && github.event_name == 'pull_request'