added nushell setup

.github/workflows/docker.yml

@@ -15,6 +15,9 @@ jobs:
 
         steps:
             - uses: actions/checkout@v4
+            - uses: hustcer/setup-nu@v3
+              with:
+                  version: "0.90" # Don't use 0.90 here, as it would be a float number and would be converted to 0.9, you can use v0.90/0.90.0 or '0.90'
             - name: Build Docker image
               run: |
                   apt install -y nu