dbg: add "wich nu"

.github/workflows/ci.yml

@@ -39,6 +39,7 @@ jobs:
         run: |
           echo $PATH
           ls -la $(make print-NU_DEST)
+          echo "nu: $(which nu)"
           make show
       - name: Run tests
         run: |

.gitlab-ci.yml

@@ -34,4 +34,5 @@ test:
   script:
     - echo $PATH
     - ls -la $(make print-NU_DEST)
+    - echo "nu: $(which nu)"
     - make check clippy test example