Update GH actions

Author: benjimaclellan

.github/workflows/check_code_format.yml

@@ -0,0 +1,15 @@
+name: Check Code Format
+
+on: pull_request
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: psf/black@stable
+        with:
+          options: "--check --verbose"
+          src: "./src"
+          jupyter: true
+          version: "~= 24.0"