Updating request sandbox pipeline to set users key value to lowercase

.github/workflows/request-sandbox.yml

@@ -14,7 +14,7 @@ jobs:
         uses: actions/checkout@v4
       - name: Add user to sandbox list
         run: |
-          yq eval '. += [{"user": "${{github.event.sender.login}}", "email": "${{github.event.inputs.email}}"}]' system/sandboxes/sandbox-list.yaml -i
+          yq eval '. += [{"user": "'$(echo "${{ github.event.sender.login }}" | tr '[:upper:]' '[:lower:]')'", "email": "${{github.event.inputs.email}}"}]' sandbox-list.yaml -i
       - name: Create Pull Request
         uses: peter-evans/create-pull-request@v5
         with:
@@ -26,4 +26,4 @@ jobs:
             1. Go to https://cedille.omni.siderolabs.io/cluster/cedille-cluster/overview, click "Download kubeconfig" and put that file as ~/.kube/config
             2. Install vcluster on your computer: https://www.vcluster.com/docs/getting-started/setup
             3. run `vcluster connect vcluster-sandbox -n ${{github.event.sender.login}}-vcluster-sandbox`
-            4. Start using kubectl to play around!
+            4. Start using kubectl to play around!