Add input for scaleset-label in custom label workflow (#7)

* Add input for scaleset-label in custom label workflow

Updated workflow to include input for scaleset-label.

* Potential fix for code scanning alert no. 7: Workflow does not contain permissions

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

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Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: nikola-jokic

.github/workflows/arc-custom-label.yaml

@@ -0,0 +1,18 @@
+name: Custom label
+permissions:
+  contents: read
+on:
+  workflow_dispatch:
+    inputs:
+      scaleset-label:
+        required: true
+        type: string
+        description: Label to test the scale set assignment
+        
+jobs:
+  say-hello:
+    runs-on: ${{ inputs.scaleset-label }}
+    steps:
+      - uses: actions/checkout@v6
+      - name: Run a one-liner
+        run: echo Hello, World!