Create format.yml

Author: andreasnoack

.github/workflows/format.yml

@@ -0,0 +1,11 @@
+name: Format check
+on:
+  pull_request:
+  workflow_dispatch:
+jobs:
+  code-style:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: julia-actions/julia-format@v3
+        with:
+          version: '1' # Set `version` to '1.0.54' if you need to use JuliaFormatter.jl v1.0.54 (default: '1')