ci: avoid cache save during racy cancellation of GitHub Actions jobs

Author: cpcloud

.github/actions/fetch_ctk/action.yml

@@ -140,7 +140,7 @@ runs:
         ls -l $CUDA_PATH
 
     - name: Upload CTK cache
-      if: ${{ always() &&
+      if: ${{ !cancelled() &&
               steps.ctk-get-cache.outputs.cache-hit != 'true' }}
       uses: actions/cache/save@5a3ec84eff668545956fd18022155c47e93e2684  # v4.2.3
       with: